diff --git a/app/controllers/instructeurs/dossiers_controller.rb b/app/controllers/instructeurs/dossiers_controller.rb
index 39d7554f6..f62941ffb 100644
--- a/app/controllers/instructeurs/dossiers_controller.rb
+++ b/app/controllers/instructeurs/dossiers_controller.rb
@@ -43,7 +43,7 @@ module Instructeurs
     end
 
     def show
-      @demande_seen_at = current_instructeur.follows.find_by(dossier: dossier)&.demande_seen_at
+      @demande_seen_at = current_instructeur.follows.find_by(dossier: dossier_with_champs)&.demande_seen_at
 
       respond_to do |format|
         format.pdf do
@@ -96,24 +96,24 @@ module Instructeurs
     def follow
       current_instructeur.follow(dossier)
       flash.notice = 'Dossier suivi'
-      redirect_back(fallback_location: instructeur_procedures_url)
+      redirect_back(fallback_location: instructeur_procedure_path(procedure))
     end
 
     def unfollow
       current_instructeur.unfollow(dossier)
       flash.notice = "Vous ne suivez plus le dossier nº #{dossier.id}"
 
-      redirect_back(fallback_location: instructeur_procedures_url)
+      redirect_back(fallback_location: instructeur_procedure_path(procedure))
     end
 
     def archive
       dossier.archiver!(current_instructeur)
-      redirect_back(fallback_location: instructeur_procedures_url)
+      redirect_back(fallback_location: instructeur_procedure_path(procedure))
     end
 
     def unarchive
       dossier.desarchiver!(current_instructeur)
-      redirect_back(fallback_location: instructeur_procedures_url)
+      redirect_back(fallback_location: instructeur_procedure_path(procedure))
     end
 
     def passer_en_instruction
@@ -226,14 +226,25 @@ module Instructeurs
       zipline(files, "dossier-#{dossier.id}.zip")
     end
 
-    def delete_dossier
+    def destroy
       if dossier.termine?
         dossier.hide_and_keep_track!(current_instructeur, :instructeur_request)
         flash.notice = t('instructeurs.dossiers.deleted_by_instructeur')
-        redirect_to instructeur_procedure_path(procedure)
       else
         flash.alert = t('instructeurs.dossiers.impossible_deletion')
-        redirect_back(fallback_location: instructeur_procedures_url)
+      end
+      redirect_back(fallback_location: instructeur_procedure_path(procedure))
+    end
+
+    def restore
+      dossier = current_instructeur.dossiers.find(params[:dossier_id])
+      dossier.restore(current_instructeur)
+      flash.notice = t('instructeurs.dossiers.restore')
+
+      if dossier.termine?
+        redirect_to instructeur_procedure_path(procedure, statut: :traites)
+      else
+        redirect_back(fallback_location: instructeur_procedure_path(procedure))
       end
     end
 
@@ -243,7 +254,15 @@ module Instructeurs
       @dossier ||= current_instructeur
         .dossiers
         .visible_by_administration
-        .includes(champs: :type_de_champ)
+        .find(params[:dossier_id])
+    end
+
+    def dossier_with_champs
+      @dossier ||= current_instructeur
+        .dossiers
+        .visible_by_administration
+        .with_champs
+        .with_annotations
         .find(params[:dossier_id])
     end
 
@@ -259,19 +278,19 @@ module Instructeurs
     end
 
     def mark_demande_as_read
-      current_instructeur.mark_tab_as_seen(dossier, :demande)
+      current_instructeur.mark_tab_as_seen(@dossier, :demande)
     end
 
     def mark_messagerie_as_read
-      current_instructeur.mark_tab_as_seen(dossier, :messagerie)
+      current_instructeur.mark_tab_as_seen(@dossier, :messagerie)
     end
 
     def mark_avis_as_read
-      current_instructeur.mark_tab_as_seen(dossier, :avis)
+      current_instructeur.mark_tab_as_seen(@dossier, :avis)
     end
 
     def mark_annotations_privees_as_read
-      current_instructeur.mark_tab_as_seen(dossier, :annotations_privees)
+      current_instructeur.mark_tab_as_seen(@dossier, :annotations_privees)
     end
 
     def aasm_error_message(exception, target_state:)
diff --git a/app/controllers/instructeurs/procedures_controller.rb b/app/controllers/instructeurs/procedures_controller.rb
index 25e7b3ad3..6105efc5a 100644
--- a/app/controllers/instructeurs/procedures_controller.rb
+++ b/app/controllers/instructeurs/procedures_controller.rb
@@ -39,7 +39,7 @@ module Instructeurs
         'dossiers' => @dossiers_count_per_procedure.sum { |_, v| v },
         'expirant' => @dossiers_expirant_count_per_procedure.sum { |_, v| v },
         'archivés' => @dossiers_archived_count_per_procedure.sum { |_, v| v },
-        'supprimes_recemment' => @dossiers_supprimes_recemment_count_per_procedure.sum { |_, v| v }
+        'supprimés récemment' => @dossiers_supprimes_recemment_count_per_procedure.sum { |_, v| v }
       }
 
       @procedure_ids_en_cours_with_notifications = current_instructeur.procedure_ids_with_notifications(:en_cours)
@@ -137,15 +137,18 @@ module Instructeurs
         .order(:dossier_id)
         .page params[:page]
 
-      @a_suivre_count, @suivis_count, @traites_count, @tous_count, @archives_count = current_instructeur
+      @a_suivre_count, @suivis_count, @traites_count, @tous_count, @archives_count, @supprimes_recemment_count, @expirant_count = current_instructeur
         .dossiers_count_summary(groupe_instructeur_ids)
-        .fetch_values('a_suivre', 'suivis', 'traites', 'tous', 'archives')
+        .fetch_values('a_suivre', 'suivis', 'traites', 'tous', 'archives', 'supprimes_recemment', 'expirant')
+      @can_download_dossiers = (@tous_count + @archives_count) > 0
 
       notifications = current_instructeur.notifications_for_groupe_instructeurs(groupe_instructeur_ids)
       @has_en_cours_notifications = notifications[:en_cours].present?
       @has_termine_notifications = notifications[:termines].present?
 
       @statut = 'supprime'
+
+      assign_exports
     end
 
     def update_displayed_fields
@@ -278,6 +281,8 @@ module Instructeurs
       redirect_to instructeur_procedure_path(@procedure)
     end
 
+    private
+
     def create_bulk_message_mail(dossier_count, dossier_state)
       BulkMessage.create(
         dossier_count: dossier_count,
@@ -290,15 +295,6 @@ module Instructeurs
       )
     end
 
-    def restore
-      dossier = current_instructeur.dossiers.find(params[:dossier_id])
-      dossier.restore(current_instructeur)
-      flash.notice = t('instructeurs.dossiers.restore')
-      redirect_to instructeur_procedure_path(procedure)
-    end
-
-    private
-
     def assign_to_params
       params.require(:assign_to)
         .permit(:instant_email_dossier_notifications_enabled, :instant_email_message_notifications_enabled, :daily_email_notifications_enabled, :weekly_email_notifications_enabled)
diff --git a/app/graphql/schema.graphql b/app/graphql/schema.graphql
index a4a9bf469..89054c900 100644
--- a/app/graphql/schema.graphql
+++ b/app/graphql/schema.graphql
@@ -727,6 +727,11 @@ type Dossier {
   """
   dateDerniereModification: ISO8601DateTime!
 
+  """
+  Date d’expiration.
+  """
+  dateExpiration: ISO8601DateTime
+
   """
   Date du dernier passage en construction.
   """
@@ -737,6 +742,16 @@ type Dossier {
   """
   datePassageEnInstruction: ISO8601DateTime
 
+  """
+  Date de la suppression par l’administration.
+  """
+  dateSuppressionParAdministration: ISO8601DateTime
+
+  """
+  Date de la suppression par l’usager.
+  """
+  dateSuppressionParUsager: ISO8601DateTime
+
   """
   Date du dernier traitement.
   """
@@ -770,6 +785,7 @@ type Dossier {
   L’état du dossier.
   """
   state: DossierState!
+  traitements: [Traitement!]!
   usager: Profile!
 }
 
@@ -1877,6 +1893,14 @@ enum TitreIdentiteGrantType {
   piece_justificative
 }
 
+type Traitement {
+  dateTraitement: ISO8601DateTime!
+  emailAgentTraitant: String
+  id: ID!
+  motivation: String
+  state: DossierState!
+}
+
 enum TypeDeChamp {
   """
   Adresse
@@ -2104,4 +2128,4 @@ type ValidationError {
   A description of the error
   """
   message: String!
-}
+}
\ No newline at end of file
diff --git a/app/graphql/types/dossier_type.rb b/app/graphql/types/dossier_type.rb
index 9a5eeeb99..374a61c7f 100644
--- a/app/graphql/types/dossier_type.rb
+++ b/app/graphql/types/dossier_type.rb
@@ -20,6 +20,10 @@ module Types
     field :date_traitement, GraphQL::Types::ISO8601DateTime, "Date du dernier traitement.", null: true, method: :processed_at
     field :date_derniere_modification, GraphQL::Types::ISO8601DateTime, "Date de la dernière modification.", null: false, method: :updated_at
 
+    field :date_suppression_par_usager, GraphQL::Types::ISO8601DateTime, "Date de la suppression par l’usager.", null: true, method: :hidden_by_user_at
+    field :date_suppression_par_administration, GraphQL::Types::ISO8601DateTime, "Date de la suppression par l’administration.", null: true, method: :hidden_by_administration_at
+    field :date_expiration, GraphQL::Types::ISO8601DateTime, "Date d’expiration.", null: true
+
     field :archived, Boolean, null: false
 
     field :motivation, String, null: true
@@ -51,11 +55,18 @@ module Types
     field :annotations, [Types::ChampType], null: false do
       argument :id, ID, required: false
     end
+    field :traitements, [Types::TraitementType], null: false
 
     def state
       object.state
     end
 
+    def date_expiration
+      if !object.en_instruction?
+        object.expiration_date.presence || object.approximative_expiration_date
+      end
+    end
+
     def usager
       if object.user_deleted?
         { email: object.user_email_for(:display), id: -1 }
@@ -84,6 +95,10 @@ module Types
       Loaders::Association.for(object.class, :followers_instructeurs).load(object)
     end
 
+    def traitements
+      Loaders::Association.for(object.class, :traitements).load(object)
+    end
+
     def messages(id: nil)
       if id.present?
         Loaders::Record
diff --git a/app/graphql/types/traitement_type.rb b/app/graphql/types/traitement_type.rb
new file mode 100644
index 000000000..b8090ffed
--- /dev/null
+++ b/app/graphql/types/traitement_type.rb
@@ -0,0 +1,9 @@
+module Types
+  class TraitementType < Types::BaseObject
+    global_id_field :id
+    field :state, Types::DossierType::DossierState, null: false
+    field :date_traitement, GraphQL::Types::ISO8601DateTime, null: false, method: :processed_at
+    field :email_agent_traitant, String, null: true, method: :instructeur_email
+    field :motivation, String, null: true
+  end
+end
diff --git a/app/models/champ.rb b/app/models/champ.rb
index b2aee8e41..9e06258d4 100644
--- a/app/models/champ.rb
+++ b/app/models/champ.rb
@@ -81,18 +81,8 @@ class Champ < ApplicationRecord
     !private?
   end
 
-  def siblings
-    if parent
-      parent&.champs
-    elsif public?
-      dossier&.champs
-    else
-      dossier&.champs_private
-    end
-  end
-
   def sections
-    siblings&.filter(&:header_section?)
+    @sections ||= dossier.sections_for(self)
   end
 
   def mandatory_and_blank?
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index 08f093c22..a93ea6a6a 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -261,32 +261,33 @@ class Dossier < ApplicationRecord
   }
   scope :en_cours,                    -> { not_archived.state_en_construction_ou_instruction }
   scope :without_followers,           -> { left_outer_joins(:follows).where(follows: { id: nil }) }
-  scope :with_champs,                 -> { includes(champs: :type_de_champ) }
+  scope :with_champs, -> {
+    includes(champs: [
+      :type_de_champ,
+      :geo_areas,
+      piece_justificative_file_attachment: :blob,
+      champs: [:type_de_champ, piece_justificative_file_attachment: :blob]
+    ])
+  }
+  scope :with_annotations, -> {
+    includes(champs_private: [
+      :type_de_champ,
+      :geo_areas,
+      piece_justificative_file_attachment: :blob,
+      champs: [:type_de_champ, piece_justificative_file_attachment: :blob]
+    ])
+  }
   scope :for_api, -> {
-    includes(commentaires: { piece_jointe_attachment: :blob },
-      champs: [
-        :geo_areas,
-        :etablissement,
-        piece_justificative_file_attachment: :blob,
-        champs: [
-          piece_justificative_file_attachment: :blob
-        ]
-      ],
-      champs_private: [
-        :geo_areas,
-        :etablissement,
-        piece_justificative_file_attachment: :blob,
-        champs: [
-          piece_justificative_file_attachment: :blob
-        ]
-      ],
-      justificatif_motivation_attachment: :blob,
-      attestation: [],
-      avis: { piece_justificative_file_attachment: :blob },
-      traitement: [],
-      etablissement: [],
-      individual: [],
-      user: [])
+    with_champs
+      .with_annotations
+      .includes(commentaires: { piece_jointe_attachment: :blob },
+        justificatif_motivation_attachment: :blob,
+        attestation: [],
+        avis: { piece_justificative_file_attachment: :blob },
+        traitement: [],
+        etablissement: [],
+        individual: [],
+        user: [])
   }
 
   scope :with_notifiable_procedure, -> (opts = { notify_on_closed: false }) do
@@ -1122,6 +1123,20 @@ class Dossier < ApplicationRecord
     termine_expired_to_delete.find_each(&:purge_discarded)
   end
 
+  def sections_for(champ)
+    @sections = Hash.new do |hash, parent|
+      case parent
+      when :public
+        hash[parent] = champs.filter(&:header_section?)
+      when :private
+        hash[parent] = champs_private.filter(&:header_section?)
+      else
+        hash[parent] = parent.champs.filter(&:header_section?)
+      end
+    end
+    @sections[champ.parent || (champ.public? ? :public : :private)]
+  end
+
   private
 
   def create_missing_traitemets
@@ -1143,7 +1158,7 @@ class Dossier < ApplicationRecord
   end
 
   def geo_areas
-    champs.includes(:geo_areas).flat_map(&:geo_areas) + champs_private.includes(:geo_areas).flat_map(&:geo_areas)
+    champs.flat_map(&:geo_areas) + champs_private.flat_map(&:geo_areas)
   end
 
   def bounding_box
diff --git a/app/models/instructeur.rb b/app/models/instructeur.rb
index 6ab359dae..77682fe5c 100644
--- a/app/models/instructeur.rb
+++ b/app/models/instructeur.rb
@@ -140,6 +140,7 @@ class Instructeur < ApplicationRecord
 
   def notifications_for_groupe_instructeurs(groupe_instructeurs)
     Dossier
+      .visible_by_administration
       .not_archived
       .where(groupe_instructeur: groupe_instructeurs)
       .merge(followed_dossiers)
@@ -180,8 +181,8 @@ class Instructeur < ApplicationRecord
       nb_notification = notifications[:en_cours].count + notifications[:termines].count
 
       h = {
-        nb_en_construction: groupe.dossiers.en_construction.count,
-        nb_en_instruction: groupe.dossiers.en_instruction.count,
+        nb_en_construction: groupe.dossiers.visible_by_administration.en_construction.count,
+        nb_en_instruction: groupe.dossiers.visible_by_administration.en_instruction.count,
         nb_accepted: Traitement.where(dossier: groupe.dossiers.accepte, processed_at: Time.zone.yesterday.beginning_of_day..Time.zone.yesterday.end_of_day).count,
         nb_notification: nb_notification
       }
diff --git a/app/services/serializer_service.rb b/app/services/serializer_service.rb
index 3ded29254..d1a05b714 100644
--- a/app/services/serializer_service.rb
+++ b/app/services/serializer_service.rb
@@ -74,6 +74,8 @@ class SerializerService
       datePassageEnConstruction
       datePassageEnInstruction
       dateTraitement
+      dateSuppressionParUsager
+      dateSuppressionParAdministration
       instructeurs {
         email
       }
diff --git a/app/views/instructeurs/dossiers/_header_actions.html.haml b/app/views/instructeurs/dossiers/_header_actions.html.haml
index 47f7b4893..671340d53 100644
--- a/app/views/instructeurs/dossiers/_header_actions.html.haml
+++ b/app/views/instructeurs/dossiers/_header_actions.html.haml
@@ -28,7 +28,8 @@
             state: dossier.state,
             archived: dossier.archived,
             dossier_is_followed: current_instructeur&.follow?(dossier),
-            close_to_expiration: dossier.close_to_expiration? }
+            close_to_expiration: dossier.close_to_expiration?,
+            hidden_by_administration: dossier.hidden_by_administration? }
 
 
 .state-button
diff --git a/app/views/instructeurs/dossiers/_state_button.html.haml b/app/views/instructeurs/dossiers/_state_button.html.haml
index 0b6a0beb5..5530f9679 100644
--- a/app/views/instructeurs/dossiers/_state_button.html.haml
+++ b/app/views/instructeurs/dossiers/_state_button.html.haml
@@ -114,8 +114,7 @@
               L’usager a supprimé son compte. Vous pouvez archiver puis supprimer le dossier.
 
         %li
-          = link_to supprimer_dossier_instructeur_dossier_path(dossier.procedure, dossier), method: :patch, data: { confirm: "Voulez vous vraiment supprimer le dossier #{dossier.id} ? Cette action est irréversible. \nNous vous suggérons de télécharger le dossier au format PDF au préalable." } do
+          = link_to instructeur_dossier_path(dossier.procedure, dossier), method: :delete do
             %span.icon.delete
             .dropdown-description
               %h4 Supprimer le dossier
-              L’usager sera notifié que son dossier est supprimé.
diff --git a/app/views/instructeurs/procedures/_dossier_actions.html.haml b/app/views/instructeurs/procedures/_dossier_actions.html.haml
index aab58893a..76d90c6b5 100644
--- a/app/views/instructeurs/procedures/_dossier_actions.html.haml
+++ b/app/views/instructeurs/procedures/_dossier_actions.html.haml
@@ -1,4 +1,7 @@
-- if close_to_expiration || Dossier::TERMINE.include?(state)
+- if hidden_by_administration
+  = link_to restore_instructeur_dossier_path(procedure_id, dossier_id), method: :patch, class: "button" do
+    = t('views.instructeurs.dossiers.restore')
+- elsif close_to_expiration || Dossier::TERMINE.include?(state)
   .dropdown.user-dossier-actions
     %button.button.dropdown-button{ 'aria-expanded' => 'false', 'aria-controls' => 'actions-menu' }
       Actions
@@ -23,7 +26,7 @@
                 Archiver le dossier
 
           %li.danger
-            = link_to supprimer_dossier_instructeur_dossier_path(procedure_id, dossier_id), method: :patch, data: { confirm: "Voulez vous vraiment supprimer le dossier #{dossier_id} ? Cette action est irréversible. \nNous vous suggérons de télécharger le dossier au format PDF au préalable." } do
+            = link_to instructeur_dossier_path(procedure_id, dossier_id), method: :delete do
               %span.icon.delete
               .dropdown-description
                 = t('views.instructeurs.dossiers.delete_dossier')
diff --git a/app/views/instructeurs/procedures/deleted_dossiers.html.haml b/app/views/instructeurs/procedures/deleted_dossiers.html.haml
index be960eb77..f702298b2 100644
--- a/app/views/instructeurs/procedures/deleted_dossiers.html.haml
+++ b/app/views/instructeurs/procedures/deleted_dossiers.html.haml
@@ -7,13 +7,21 @@
       .procedure-logo{ style: "background-image: url(#{@procedure.logo_url})",
         role: 'img', 'aria-label': "logo de la démarche #{@procedure.libelle}" }
 
-      = render partial: 'header', locals: { procedure: @procedure,
+      = render partial: 'header', locals: { procedure: @procedure, statut: @statut }
+
+      .procedure-actions
+        - if @can_download_dossiers
+          = render partial: "download_dossiers", locals: { procedure: @procedure, exports: @exports }
+
+    .container.flex= render partial: "tabs", locals: { procedure: @procedure,
         statut: @statut,
         a_suivre_count: @a_suivre_count,
         suivis_count: @suivis_count,
         traites_count: @traites_count,
         tous_count: @tous_count,
+        supprimes_recemment_count: @supprimes_recemment_count,
         archives_count: @archives_count,
+        expirant_count: @expirant_count,
         has_en_cours_notifications: @has_en_cours_notifications,
         has_termine_notifications: @has_termine_notifications }
 
diff --git a/app/views/instructeurs/procedures/show.html.haml b/app/views/instructeurs/procedures/show.html.haml
index 334d0b4bb..e9d171bb5 100644
--- a/app/views/instructeurs/procedures/show.html.haml
+++ b/app/views/instructeurs/procedures/show.html.haml
@@ -12,6 +12,7 @@
       .procedure-actions
         - if @can_download_dossiers
           = render partial: "download_dossiers", locals: { procedure: @procedure, exports: @exports }
+
     .container.flex= render partial: "tabs", locals: { procedure: @procedure,
         statut: @statut,
         a_suivre_count: @a_suivre_count,
@@ -116,36 +117,46 @@
             - path = instructeur_dossier_path(@procedure, p.dossier_id)
             %tr{ class: [p.hidden_by_user_at.present? && "file-hidden-by-user"] }
               %td.folder-col
-                %a.cell-link{ href: path }
-                  %span.icon.folder
-                    - if @not_archived_notifications_dossier_ids.include?(p.dossier_id)
-                      %span.notifications{ 'aria-label': 'notifications' }
+                - if p.hidden_by_administration_at.present?
+                  %span.cell-link
+                    %span.icon.folder
+                - else
+                  %a.cell-link{ href: path }
+                    %span.icon.folder
+                      - if @not_archived_notifications_dossier_ids.include?(p.dossier_id)
+                        %span.notifications{ 'aria-label': 'notifications' }
 
               %td.number-col
-                %a.cell-link{ href: path }= p.dossier_id
+                - if p.hidden_by_administration_at.present?
+                  %span.cell-link= p.dossier_id
+                - else
+                  %a.cell-link{ href: path }= p.dossier_id
 
               - p.columns.each do |column|
                 %td
-                  %a.cell-link{ href: path }
-                    = column
-                    = "- #{t('views.instructeurs.dossiers.deleted_by_user')}" if p.hidden_by_user_at.present?
+                  - if p.hidden_by_administration_at.present?
+                    %span.cell-link
+                      = column
+                      = "- #{t('views.instructeurs.dossiers.deleted_by_user')}" if p.hidden_by_user_at.present?
+                  - else
+                    %a.cell-link{ href: path }
+                      = column
+                      = "- #{t('views.instructeurs.dossiers.deleted_by_user')}" if p.hidden_by_user_at.present?
 
               %td.status-col
-                %a.cell-link{ href: path }= status_badge(p.state)
+                - if p.hidden_by_administration_at.present?
+                  %span.cell-link= status_badge(p.state)
+                - else
+                  %a.cell-link{ href: path }= status_badge(p.state)
 
-              - if @statut == 'supprimes_recemment'
-                %td.action-col.follow-col
-                  = link_to restore_instructeur_dossier_path(@procedure, p.dossier_id), method: :patch, class: "button primary" do
-                    = t('views.instructeurs.dossiers.restore')
-
-              - else
-                %td.action-col.follow-col= render partial: 'dossier_actions',
-                    locals: { procedure_id: @procedure.id,
-                              dossier_id: p.dossier_id,
-                              state: p.state,
-                              archived: p.archived,
-                              dossier_is_followed: @followed_dossiers_id.include?(p.dossier_id),
-                              close_to_expiration: @statut == 'expirant' }
+              %td.action-col.follow-col= render partial: 'dossier_actions',
+                locals: { procedure_id: @procedure.id,
+                          dossier_id: p.dossier_id,
+                          state: p.state,
+                          archived: p.archived,
+                          dossier_is_followed: @followed_dossiers_id.include?(p.dossier_id),
+                          close_to_expiration: @statut == 'expirant',
+                          hidden_by_administration: @statut == 'supprimes_recemment' }
 
       = pagination
     - else
diff --git a/app/views/recherche/index.html.haml b/app/views/recherche/index.html.haml
index 72c91916e..1c5609d4f 100644
--- a/app/views/recherche/index.html.haml
+++ b/app/views/recherche/index.html.haml
@@ -93,7 +93,8 @@
                                                                       state: p.state,
                                                                       archived: p.archived,
                                                                       dossier_is_followed: @followed_dossiers_id.include?(p.dossier_id),
-                                                                      close_to_expiration: nil }
+                                                                      close_to_expiration: nil,
+                                                                      hidden_by_administration: nil }
 
             - else
               %td
diff --git a/config/routes.rb b/config/routes.rb
index 42c18a106..b99c8a88f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -359,7 +359,7 @@ Rails.application.routes.draw do
         get 'email_usagers'
         post 'create_multiple_commentaire'
 
-        resources :dossiers, only: [:show], param: :dossier_id do
+        resources :dossiers, only: [:show, :destroy], param: :dossier_id do
           member do
             resources :commentaires, only: [:destroy]
             post 'repousser-expiration' => 'dossiers#extend_conservation'
@@ -375,7 +375,7 @@ Rails.application.routes.draw do
             patch 'unfollow'
             patch 'archive'
             patch 'unarchive'
-            patch 'supprimer-dossier' => 'dossiers#delete_dossier'
+            patch 'restore'
             patch 'annotations' => 'dossiers#update_annotations'
             post 'commentaire' => 'dossiers#create_commentaire'
             post 'passer-en-instruction' => 'dossiers#passer_en_instruction'
@@ -386,7 +386,6 @@ Rails.application.routes.draw do
             post 'avis' => 'dossiers#create_avis'
             get 'print' => 'dossiers#print'
             get 'telecharger_pjs' => 'dossiers#telecharger_pjs'
-            patch 'restore'
           end
         end
 
diff --git a/lib/tasks/deployment/20210402000000_null_export_keys_to_uuid.rake b/lib/tasks/deployment/20210402000000_null_export_keys_to_uuid.rake
new file mode 100644
index 000000000..4d90676c5
--- /dev/null
+++ b/lib/tasks/deployment/20210402000000_null_export_keys_to_uuid.rake
@@ -0,0 +1,13 @@
+namespace :after_party do
+  desc 'Deployment task: null_exports_key_to_uuid'
+  task null_exports_key_to_uuid: :environment do
+    puts "Running deploy task 'null_exports_key_to_uuid'"
+
+    Export.where(key: nil).update_all(key: SecureRandom.uuid)
+
+    # Update task as completed.  If you remove the line below, the task will
+    # run with every deploy (or every time you call after_party:run).
+    AfterParty::TaskRecord
+      .create version: AfterParty::TaskRecorder.new(__FILE__).timestamp
+  end
+end
diff --git a/spec/controllers/instructeurs/dossiers_controller_spec.rb b/spec/controllers/instructeurs/dossiers_controller_spec.rb
index 64240881c..b5cd1e38c 100644
--- a/spec/controllers/instructeurs/dossiers_controller_spec.rb
+++ b/spec/controllers/instructeurs/dossiers_controller_spec.rb
@@ -56,7 +56,7 @@ describe Instructeurs::DossiersController, type: :controller do
 
     it { expect(instructeur.followed_dossiers).to match([dossier]) }
     it { expect(flash.notice).to eq('Dossier suivi') }
-    it { expect(response).to redirect_to(instructeur_procedures_url) }
+    it { expect(response).to redirect_to(instructeur_procedure_path(dossier.procedure)) }
   end
 
   describe '#unfollow' do
@@ -68,7 +68,7 @@ describe Instructeurs::DossiersController, type: :controller do
 
     it { expect(instructeur.followed_dossiers).to match([]) }
     it { expect(flash.notice).to eq("Vous ne suivez plus le dossier nº #{dossier.id}") }
-    it { expect(response).to redirect_to(instructeur_procedures_url) }
+    it { expect(response).to redirect_to(instructeur_procedure_path(dossier.procedure)) }
   end
 
   describe '#archive' do
@@ -80,7 +80,7 @@ describe Instructeurs::DossiersController, type: :controller do
     end
 
     it { expect(dossier.archived).to be true }
-    it { expect(response).to redirect_to(instructeur_procedures_url) }
+    it { expect(response).to redirect_to(instructeur_procedure_path(dossier.procedure)) }
   end
 
   describe '#unarchive' do
@@ -91,7 +91,7 @@ describe Instructeurs::DossiersController, type: :controller do
     end
 
     it { expect(dossier.archived).to be false }
-    it { expect(response).to redirect_to(instructeur_procedures_url) }
+    it { expect(response).to redirect_to(instructeur_procedure_path(dossier.procedure)) }
   end
 
   describe '#passer_en_instruction' do
@@ -740,9 +740,9 @@ describe Instructeurs::DossiersController, type: :controller do
     end
   end
 
-  describe "#delete_dossier" do
+  describe "#destroy" do
     subject do
-      patch :delete_dossier, params: {
+      delete :destroy, params: {
         procedure_id: procedure.id,
         dossier_id: dossier.id
       }
diff --git a/spec/graphql/dossier_spec.rb b/spec/graphql/dossier_spec.rb
index 3497fbcbc..d4e3b14a9 100644
--- a/spec/graphql/dossier_spec.rb
+++ b/spec/graphql/dossier_spec.rb
@@ -14,6 +14,8 @@ RSpec.describe Types::DossierType, type: :graphql do
     let(:variables) { { number: dossier.id } }
 
     it { expect(data[:dossier][:attestation]).not_to be_nil }
+    it { expect(data[:dossier][:traitements]).to eq([{ state: 'accepte' }]) }
+    it { expect(data[:dossier][:dateExpiration]).not_to be_nil }
 
     context 'when attestation is nil' do
       before do
@@ -39,6 +41,10 @@ RSpec.describe Types::DossierType, type: :graphql do
       attestation {
         url
       }
+      traitements {
+        state
+      }
+      dateExpiration
     }
   }
   GRAPHQL
diff --git a/spec/models/champ_spec.rb b/spec/models/champ_spec.rb
index 1f8bbda18..b256a04d9 100644
--- a/spec/models/champ_spec.rb
+++ b/spec/models/champ_spec.rb
@@ -69,19 +69,32 @@ describe Champ do
     end
   end
 
-  describe '#siblings' do
-    let(:procedure) { create(:procedure, :with_type_de_champ, :with_type_de_champ_private, :with_repetition, types_de_champ_count: 1, types_de_champ_private_count: 1) }
+  describe '#sections' do
+    let(:procedure) do
+      create(:procedure, :with_type_de_champ, :with_type_de_champ_private, :with_repetition, types_de_champ_count: 1, types_de_champ_private_count: 1).tap do |procedure|
+        create(:type_de_champ_header_section, procedure: procedure)
+        create(:type_de_champ_header_section, procedure: procedure, private: true)
+        create(:type_de_champ_header_section, parent: procedure.types_de_champ.find(&:repetition?))
+      end
+    end
     let(:dossier) { create(:dossier, procedure: procedure) }
     let(:public_champ) { dossier.champs.first }
     let(:private_champ) { dossier.champs_private.first }
     let(:champ_in_repetition) { dossier.champs.find(&:repetition?).champs.first }
-    let(:standalone_champ) { build(:champ, type_de_champ: build(:type_de_champ), dossier: nil) }
+    let(:standalone_champ) { build(:champ, type_de_champ: build(:type_de_champ), dossier: build(:dossier)) }
+    let(:public_sections) { dossier.champs.filter(&:header_section?) }
+    let(:private_sections) { dossier.champs_private.filter(&:header_section?) }
+    let(:sections_in_repetition) { champ_in_repetition.parent.champs.filter(&:header_section?) }
 
-    it 'returns the sibling champs of a champ' do
-      expect(public_champ.siblings).to eq(dossier.champs)
-      expect(private_champ.siblings).to eq(dossier.champs_private)
-      expect(champ_in_repetition.siblings).to eq(champ_in_repetition.parent.champs)
-      expect(standalone_champ.siblings).to be_nil
+    it 'returns the sibling sections of a champ' do
+      expect(public_sections).not_to be_empty
+      expect(private_sections).not_to be_empty
+      expect(sections_in_repetition).not_to be_empty
+
+      expect(public_champ.sections).to eq(public_sections)
+      expect(private_champ.sections).to eq(private_sections)
+      expect(champ_in_repetition.sections).to eq(sections_in_repetition)
+      expect(standalone_champ.sections).to eq([])
     end
   end
 
diff --git a/spec/system/instructeurs/instruction_spec.rb b/spec/system/instructeurs/instruction_spec.rb
index 8e1cbd1d9..032397f8e 100644
--- a/spec/system/instructeurs/instruction_spec.rb
+++ b/spec/system/instructeurs/instruction_spec.rb
@@ -70,9 +70,7 @@ describe 'Instructing a dossier:', js: true do
     click_on procedure.libelle
     click_on 'traité'
     click_on 'Actions'
-    accept_confirm do
-      click_on 'Supprimer le dossier'
-    end
+    click_on 'Supprimer le dossier'
     click_on 'traité'
     expect(page).not_to have_button('Actions')
   end