diff --git a/app/controllers/commentaires_controller.rb b/app/controllers/commentaires_controller.rb
index 6143e3e02..f711a4ab5 100644
--- a/app/controllers/commentaires_controller.rb
+++ b/app/controllers/commentaires_controller.rb
@@ -11,8 +11,18 @@ class CommentairesController < ApplicationController
       @commentaire.dossier.next_step! 'user', 'comment' if current_user.email == @commentaire.dossier.user.email
     end
 
+    unless params[:piece_justificative].nil?
+      pj = PiecesJustificativesService.upload_one! @commentaire.dossier, current_user, params
+
+      if pj.errors.empty?
+        @commentaire.piece_justificative = pj
+      else
+        flash.alert = pj.errors.full_messages.join("<br>").html_safe
+      end
+    end
+
     @commentaire.body = params['texte_commentaire']
-    @commentaire.save
+    @commentaire.save unless flash.alert
 
     if is_gestionnaire?
       NotificationMailer.new_answer(@commentaire.dossier).deliver_now!
diff --git a/app/models/commentaire.rb b/app/models/commentaire.rb
index 069179f8d..2283775d3 100644
--- a/app/models/commentaire.rb
+++ b/app/models/commentaire.rb
@@ -1,3 +1,5 @@
 class Commentaire < ActiveRecord::Base
   belongs_to :dossier
+
+  belongs_to :piece_justificative
 end
diff --git a/app/models/piece_justificative.rb b/app/models/piece_justificative.rb
index c75824f59..3b29561ba 100644
--- a/app/models/piece_justificative.rb
+++ b/app/models/piece_justificative.rb
@@ -1,6 +1,7 @@
 class PieceJustificative < ActiveRecord::Base
   belongs_to :dossier
   belongs_to :type_de_piece_justificative
+  has_one :commentaire
 
   belongs_to :user
 
@@ -10,6 +11,7 @@ class PieceJustificative < ActiveRecord::Base
 
   mount_uploader :content, PieceJustificativeUploader
   validates :content, :file_size => {:maximum => 3.megabytes}
+  validates :content, presence: true, allow_blank: false, allow_nil: false
 
   def empty?
     content.blank?
@@ -17,7 +19,22 @@ class PieceJustificative < ActiveRecord::Base
 
   def content_url
     unless content.url.nil?
-      (Downloader.new content, type_de_piece_justificative.libelle).url
+      (Downloader.new content,
+                      (type_de_piece_justificative.nil? ? content.file.original_filename : type_de_piece_justificative.libelle)).url
     end
   end
+
+  def self.accept_format
+    " application/pdf,
+      application/msword,
+      application/vnd.openxmlformats-officedocument.wordprocessingml.document,
+      application/vnd.ms-excel,
+      application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,
+      application/vnd.ms-powerpoint,
+      application/vnd.openxmlformats-officedocument.presentationml.presentation,
+      application/vnd.oasis.opendocument.text,
+      application/vnd.oasis.opendocument.presentation,
+      application/vnd.oasis.opendocument.spreadsheet
+    "
+  end
 end
diff --git a/app/services/clamav_service.rb b/app/services/clamav_service.rb
index f34c32c76..3d9b54de9 100644
--- a/app/services/clamav_service.rb
+++ b/app/services/clamav_service.rb
@@ -1,6 +1,10 @@
 class ClamavService
   def self.safe_file? path_file
 
+    if Rails.env == 'development'
+      return CLAMAV[:response] if CLAMAV[:mock?]
+    end
+
     FileUtils.chmod 0666, path_file
 
     client = ClamAV::Client.new
diff --git a/app/services/pieces_justificatives_service.rb b/app/services/pieces_justificatives_service.rb
index c19a7ddc8..f0402b1da 100644
--- a/app/services/pieces_justificatives_service.rb
+++ b/app/services/pieces_justificatives_service.rb
@@ -21,4 +21,20 @@ class PiecesJustificativesService
     end
     errors
   end
+
+  def self.upload_one! dossier, user, params
+    if ClamavService.safe_file? params[:piece_justificative][:content].path
+      piece_justificative = PieceJustificative.new(content: params[:piece_justificative][:content],
+                                                   dossier: dossier,
+                                                   type_de_piece_justificative: nil,
+                                                   user: user)
+
+      piece_justificative.save
+    else
+      piece_justificative = PieceJustificative.new
+      piece_justificative.errors.add(:content, params[:piece_justificative][:content].original_filename+": <b>Virus détecté !!</b>")
+    end
+
+    piece_justificative
+  end
 end
\ No newline at end of file
diff --git a/app/views/users/description/_pieces_justificatives.html.haml b/app/views/users/description/_pieces_justificatives.html.haml
index 1aed8207a..e440520e8 100644
--- a/app/views/users/description/_pieces_justificatives.html.haml
+++ b/app/views/users/description/_pieces_justificatives.html.haml
@@ -8,27 +8,9 @@
         -if @dossier.cerfa_available?
           %span.btn.btn-sm.btn-file.btn-success
             Modifier
-            %input{type: 'file', name:'cerfa_pdf', id:'cerfa_pdf', accept: "application/pdf,
-                                                                                application/msword,
-                                                                                application/vnd.openxmlformats-officedocument.wordprocessingml.document,
-                                                                                application/vnd.ms-excel,
-                                                                                application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,
-                                                                                application/vnd.ms-powerpoint,
-                                                                                application/vnd.openxmlformats-officedocument.presentationml.presentation,
-                                                                                application/vnd.oasis.opendocument.text,
-                                                                                application/vnd.oasis.opendocument.presentation,
-                                                                                application/vnd.oasis.opendocument.spreadsheet", :max_file_size => 3.megabytes }
+            %input{type: 'file', name:'cerfa_pdf', id:'cerfa_pdf', accept: PieceJustificative.accept_format, :max_file_size => 3.megabytes }
         -else
-          %input{type: 'file', name:'cerfa_pdf', id:'cerfa_pdf', accept: "application/pdf,
-                                                                              application/msword,
-                                                                              application/vnd.openxmlformats-officedocument.wordprocessingml.document,
-                                                                              application/vnd.ms-excel,
-                                                                              application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,
-                                                                              application/vnd.ms-powerpoint,
-                                                                              application/vnd.openxmlformats-officedocument.presentationml.presentation,
-                                                                              application/vnd.oasis.opendocument.text,
-                                                                              application/vnd.oasis.opendocument.presentation,
-                                                                              application/vnd.oasis.opendocument.spreadsheet", :max_file_size => 3.megabytes }
+          %input{type: 'file', name:'cerfa_pdf', id:'cerfa_pdf', accept:  PieceJustificative.accept_format, :max_file_size => 3.megabytes }
 
   - @dossier.types_de_piece_justificative.each do |type_de_piece_justificative|
     %tr
@@ -39,27 +21,9 @@
           %span.text-success{ id: "piece_justificative_#{type_de_piece_justificative.id}" } Nous l'avons récupéré pour vous.
         -else
           -if @dossier.retrieve_last_piece_justificative_by_type(type_de_piece_justificative.id).nil?
-            = file_field_tag "piece_justificative_#{type_de_piece_justificative.id}", accept: " application/pdf,
-                                                                                              application/msword,
-                                                                                              application/vnd.openxmlformats-officedocument.wordprocessingml.document,
-                                                                                              application/vnd.ms-excel,
-                                                                                              application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,
-                                                                                              application/vnd.ms-powerpoint,
-                                                                                              application/vnd.openxmlformats-officedocument.presentationml.presentation,
-                                                                                              application/vnd.oasis.opendocument.text,
-                                                                                              application/vnd.oasis.opendocument.presentation,
-                                                                                              application/vnd.oasis.opendocument.spreadsheet", :max_file_size => 3.megabytes
+            = file_field_tag "piece_justificative_#{type_de_piece_justificative.id}", accept:  PieceJustificative.accept_format, :max_file_size => 3.megabytes
           -else
             %span.btn.btn-sm.btn-file.btn-success
               Modifier
-              = file_field_tag "piece_justificative_#{type_de_piece_justificative.id}", accept: " application/pdf,
-                                                                                                application/msword,
-                                                                                                application/vnd.openxmlformats-officedocument.wordprocessingml.document,
-                                                                                                application/vnd.ms-excel,
-                                                                                                application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,
-                                                                                                application/vnd.ms-powerpoint,
-                                                                                                application/vnd.openxmlformats-officedocument.presentationml.presentation,
-                                                                                                application/vnd.oasis.opendocument.text,
-                                                                                                application/vnd.oasis.opendocument.presentation,
-                                                                                                application/vnd.oasis.opendocument.spreadsheet", :max_file_size => 3.megabytes
+              = file_field_tag "piece_justificative_#{type_de_piece_justificative.id}", accept:  PieceJustificative.accept_format, :max_file_size => 3.megabytes
 
diff --git a/app/views/users/recapitulatif/_commentaires_flux.html.haml b/app/views/users/recapitulatif/_commentaires_flux.html.haml
index ec49fcb75..f666e066d 100644
--- a/app/views/users/recapitulatif/_commentaires_flux.html.haml
+++ b/app/views/users/recapitulatif/_commentaires_flux.html.haml
@@ -1,10 +1,10 @@
 .content#commentaires_flux{style:'width:100%;'}
-  %div#commentaire_new{style: 'width:80%; margin-left:auto; margin-right:auto'}
-    = form_tag(url_for({ controller: 'commentaires', action: :create, dossier_id: @facade.dossier.id }), class: 'form-inline', method: 'POST') do
-      %textarea.form-control{id: 'texte_commentaire', class: 'wysihtml5', name: 'texte_commentaire', style: 'width: 100%; margin-bottom:2%', rows: '5', placeholder:"Dialoguer avec votre interlocuteur privilégié en charge de votre dossier."}
+  %div#commentaire_new{style: 'width:80%; margin-left:auto; margin-right:auto; margin-bottom:7%'}
+    = form_tag(url_for({ controller: 'commentaires', action: :create, dossier_id: @facade.dossier.id }), class: 'form-inline', method: 'POST', multipart: true) do
+      %textarea.form-control{id: 'texte_commentaire', class: 'wysihtml5', name: 'texte_commentaire', style: 'width: 100%; margin-bottom:2%', rows: '5', placeholder:"Commentaire"}
+      %h4.text-primary{style: 'margin-top: 0px'} Ajout un fichier
+      = file_field_tag "piece_justificative[content]", accept:  PieceJustificative.accept_format, style: 'float: left; margin-left: 20px'
       %input.form-control.btn.btn-success{:type => 'submit', :value => 'Poster', style: 'float:right'}
-  %br
-  %br
 
   -@facade.commentaires.each do |com|
     %span.text-info#email_contact{style: 'font-weight:bold'}
@@ -12,7 +12,15 @@
     %span#created_at
       \-
       =com.created_at_fr
+    - unless com.piece_justificative.nil?
+      \-
+      %span#piece_justificative
+        %b
+          = link_to com.piece_justificative.content.file.original_filename, com.piece_justificative.content_url, style:'color: green', target: '_blank'
+
     %br
     .description#body
       =com.body.html_safe
+
+
     %br
diff --git a/config/initializers/clamav.rb b/config/initializers/clamav.rb
new file mode 100644
index 000000000..13df38f7a
--- /dev/null
+++ b/config/initializers/clamav.rb
@@ -0,0 +1,4 @@
+CLAMAV = Hashie::Mash.new ({
+                              mock?: true,
+                              response: true
+                          })
\ No newline at end of file
diff --git a/db/migrate/20160419142017_add_piece_justificative_reference_to_commentaire.rb b/db/migrate/20160419142017_add_piece_justificative_reference_to_commentaire.rb
new file mode 100644
index 000000000..d0f9bc8f9
--- /dev/null
+++ b/db/migrate/20160419142017_add_piece_justificative_reference_to_commentaire.rb
@@ -0,0 +1,5 @@
+class AddPieceJustificativeReferenceToCommentaire < ActiveRecord::Migration
+  def change
+    add_reference :commentaires, :piece_justificative, references: :piece_justificatives
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 275c4e305..0aaefd46e 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160317153115) do
+ActiveRecord::Schema.define(version: 20160419142017) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -84,10 +84,11 @@ ActiveRecord::Schema.define(version: 20160317153115) do
 
   create_table "commentaires", force: :cascade do |t|
     t.string   "email"
-    t.datetime "created_at", null: false
+    t.datetime "created_at",             null: false
     t.string   "body"
     t.integer  "dossier_id"
-    t.datetime "updated_at", null: false
+    t.datetime "updated_at",             null: false
+    t.integer  "piece_justificative_id"
   end
 
   add_index "commentaires", ["dossier_id"], name: "index_commentaires_on_dossier_id", using: :btree
diff --git a/spec/controllers/api/v1/dossiers_controller_spec.rb b/spec/controllers/api/v1/dossiers_controller_spec.rb
index 74bb896ec..3570a60a3 100644
--- a/spec/controllers/api/v1/dossiers_controller_spec.rb
+++ b/spec/controllers/api/v1/dossiers_controller_spec.rb
@@ -181,7 +181,7 @@ describe API::V1::DossiersController do
 
         describe 'piece justificative' do
           before do
-            create :piece_justificative, dossier: dossier, type_de_piece_justificative: dossier.procedure.types_de_piece_justificative.first, user: dossier.user
+            create :piece_justificative, :rib, dossier: dossier, type_de_piece_justificative: dossier.procedure.types_de_piece_justificative.first, user: dossier.user
           end
 
           let(:field_list) { [
diff --git a/spec/controllers/backoffice/commentaires_controller_spec.rb b/spec/controllers/backoffice/commentaires_controller_spec.rb
index c0806db8c..195ac87c9 100644
--- a/spec/controllers/backoffice/commentaires_controller_spec.rb
+++ b/spec/controllers/backoffice/commentaires_controller_spec.rb
@@ -6,6 +6,10 @@ describe Backoffice::CommentairesController, type: :controller do
   let(:email_commentaire) { 'test@test.com' }
   let(:texte_commentaire) { 'Commentaire de test' }
 
+  before do
+    allow(ClamavService).to receive(:safe_file?).and_return(true)
+  end
+
   describe '#POST create' do
     before do
       sign_in create(:gestionnaire)
@@ -17,6 +21,52 @@ describe Backoffice::CommentairesController, type: :controller do
       end
     end
 
+    context 'when document is upload whith a commentaire' do
+      let(:document_upload) { Rack::Test::UploadedFile.new("./spec/support/files/piece_justificative_0.pdf", 'application/pdf') }
+
+      subject do
+        post :create, dossier_id: dossier_id, email_commentaire: email_commentaire, texte_commentaire: texte_commentaire, piece_justificative: {content: document_upload}
+      end
+
+      it 'create a new piece justificative' do
+        expect { subject }.to change(PieceJustificative, :count).by(1)
+      end
+
+      it 'clamav check the pj' do
+        expect(ClamavService).to receive(:safe_file?)
+        subject
+      end
+
+      describe 'piece justificative created' do
+        let(:pj) { PieceJustificative.last }
+
+        before do
+          subject
+        end
+
+        it 'not have a type de pj' do
+          expect(pj.type_de_piece_justificative).to be_nil
+        end
+
+        it 'content not be nil' do
+          expect(pj.content).not_to be_nil
+        end
+      end
+
+      describe 'commentaire created' do
+        let(:commentaire) { Commentaire.last }
+
+        before do
+          subject
+        end
+
+        it 'have a piece justificative reference' do
+          expect(commentaire.piece_justificative).not_to be_nil
+          expect(commentaire.piece_justificative).to eq PieceJustificative.last
+        end
+      end
+    end
+
     describe 'change dossier state after post a comment' do
       context 'gestionnaire is connected' do
         context 'when dossier is at state updated' do
diff --git a/spec/controllers/users/commentaires_controller_spec.rb b/spec/controllers/users/commentaires_controller_spec.rb
index 64c788cda..49e0bff77 100644
--- a/spec/controllers/users/commentaires_controller_spec.rb
+++ b/spec/controllers/users/commentaires_controller_spec.rb
@@ -6,6 +6,10 @@ describe Users::CommentairesController, type: :controller do
   let(:email_commentaire) { 'test@test.com' }
   let(:texte_commentaire) { 'Commentaire de test' }
 
+  before do
+    allow(ClamavService).to receive(:safe_file?).and_return(true)
+  end
+
   describe '#POST create' do
     context 'création correct d\'un commentaire' do
       subject do
@@ -26,6 +30,53 @@ describe Users::CommentairesController, type: :controller do
       end
     end
 
+    context 'when document is upload whith a commentaire' do
+      let(:document_upload) { Rack::Test::UploadedFile.new("./spec/support/files/piece_justificative_0.pdf", 'application/pdf') }
+
+      subject do
+        sign_in dossier.user
+        post :create, dossier_id: dossier_id, texte_commentaire: texte_commentaire, piece_justificative: {content: document_upload}
+      end
+
+      it 'create a new piece justificative' do
+        expect { subject }.to change(PieceJustificative, :count).by(1)
+      end
+
+      it 'clamav check the pj' do
+        expect(ClamavService).to receive(:safe_file?)
+        subject
+      end
+
+      describe 'piece justificative created' do
+        let(:pj) { PieceJustificative.last }
+
+        before do
+          subject
+        end
+
+        it 'not have a type de pj' do
+          expect(pj.type_de_piece_justificative).to be_nil
+        end
+
+        it 'content not be nil' do
+          expect(pj.content).not_to be_nil
+        end
+      end
+
+      describe 'commentaire created' do
+        let(:commentaire) { Commentaire.last }
+
+        before do
+          subject
+        end
+
+        it 'have a piece justificative reference' do
+          expect(commentaire.piece_justificative).not_to be_nil
+          expect(commentaire.piece_justificative).to eq PieceJustificative.last
+        end
+      end
+    end
+
     describe 'change dossier state after post a comment' do
       context 'when user is connected' do
         context 'when dossier is at state replied' do
@@ -39,7 +90,7 @@ describe Users::CommentairesController, type: :controller do
 
           subject { dossier.state }
 
-          it {is_expected.to eq('updated')}
+          it { is_expected.to eq('updated') }
         end
       end
     end
diff --git a/spec/factories/piece_justificative.rb b/spec/factories/piece_justificative.rb
index c1e87a59e..abe3f319c 100644
--- a/spec/factories/piece_justificative.rb
+++ b/spec/factories/piece_justificative.rb
@@ -1,11 +1,11 @@
 FactoryGirl.define do
   factory :piece_justificative do
     trait :rib do
-      content '/chemin/vers/RIB'
+      content Rack::Test::UploadedFile.new("./spec/support/files/RIB.pdf", 'application/pdf')
     end
 
     trait :contrat do
-      content '/chemin/vers/Contrat'
+      content Rack::Test::UploadedFile.new("./spec/support/files/Contrat.pdf", 'application/pdf')
     end
   end
 end
diff --git a/spec/models/commentaire_spec.rb b/spec/models/commentaire_spec.rb
index 69c7dc942..efcf9bff1 100644
--- a/spec/models/commentaire_spec.rb
+++ b/spec/models/commentaire_spec.rb
@@ -6,4 +6,6 @@ describe Commentaire do
   it { is_expected.to have_db_column(:created_at) }
   it { is_expected.to have_db_column(:updated_at) }
   it { is_expected.to belong_to(:dossier) }
+
+  it { is_expected.to belong_to(:piece_justificative) }
 end
diff --git a/spec/models/piece_justificative_spec.rb b/spec/models/piece_justificative_spec.rb
index ab2ae4b15..48eb6bbcc 100644
--- a/spec/models/piece_justificative_spec.rb
+++ b/spec/models/piece_justificative_spec.rb
@@ -10,9 +10,17 @@ describe PieceJustificative do
     it { is_expected.to belong_to(:dossier) }
     it { is_expected.to belong_to(:type_de_piece_justificative) }
     it { is_expected.to belong_to(:user) }
+    it { is_expected.to have_one(:commentaire) }
 
   end
 
+  describe 'validations' do
+    context 'content' do
+      it { is_expected.not_to allow_value(nil).for(:content) }
+      it { is_expected.not_to allow_value('').for(:content) }
+    end
+  end
+
   describe 'delegation' do
     it { is_expected.to delegate_method(:libelle).to(:type_de_piece_justificative) }
     it { is_expected.to delegate_method(:api_entreprise).to(:type_de_piece_justificative) }
@@ -21,10 +29,7 @@ describe PieceJustificative do
   describe '#empty?' do
     let(:piece_justificative) { create(:piece_justificative, content: content) }
     subject { piece_justificative.empty? }
-    context 'when content is nil' do
-      let(:content) { nil }
-      it { is_expected.to be_truthy }
-    end
+
     context 'when content exist' do
       let(:content) { File.open('./spec/support/files/piece_justificative_388.pdf') }
       it { is_expected.to be_falsey }
diff --git a/spec/support/files/Contrat.pdf b/spec/support/files/Contrat.pdf
new file mode 100644
index 000000000..3ffcd4e77
Binary files /dev/null and b/spec/support/files/Contrat.pdf differ
diff --git a/spec/support/files/RIB.pdf b/spec/support/files/RIB.pdf
new file mode 100644
index 000000000..3ffcd4e77
Binary files /dev/null and b/spec/support/files/RIB.pdf differ
diff --git a/spec/views/users/recapitulatif/_commentaires_flux_spec.rb b/spec/views/users/recapitulatif/_commentaires_flux_spec.rb
index a1f98b1da..0d6652d71 100644
--- a/spec/views/users/recapitulatif/_commentaires_flux_spec.rb
+++ b/spec/views/users/recapitulatif/_commentaires_flux_spec.rb
@@ -4,7 +4,11 @@ describe 'users/recapitulatif/_commentaires_flux.html.haml', type: :view do
   let(:dossier) { create(:dossier) }
   let(:dossier_id) { dossier.id }
   let(:email_commentaire) { 'mon_mail_de_commentaire@test.com' }
-  let!(:commentaire) { create(:commentaire, dossier: dossier, email: email_commentaire, body: 'ma super description') }
+
+  let(:document_upload) { Rack::Test::UploadedFile.new("./spec/support/files/piece_justificative_0.pdf", 'application/pdf') }
+  let(:pj) { create :piece_justificative, content: document_upload }
+
+  let!(:commentaire) { create(:commentaire, dossier: dossier, email: email_commentaire, body: 'ma super description', piece_justificative: pj) }
   let(:body) { 'Commentaire de test' }
 
   before do
@@ -24,6 +28,12 @@ describe 'users/recapitulatif/_commentaires_flux.html.haml', type: :view do
     it 'le corps du commentaire est présent' do
       expect(rendered).to have_selector('div[class=description][id=body]')
     end
+
+    context 'when commentaire as PJ' do
+      it 'commentaire present the link' do
+        expect(rendered).to have_css('#piece_justificative')
+      end
+    end
   end
 
   context 'Affichage du formulaire de commentaire' do
@@ -34,5 +44,11 @@ describe 'users/recapitulatif/_commentaires_flux.html.haml', type: :view do
     it 'Champs de texte' do
       expect(rendered).to have_selector('textarea[id=texte_commentaire][name=texte_commentaire]')
     end
+
+    describe 'File input' do
+      it 'have file_input tag' do
+        expect(rendered).to have_css('#piece_justificative_content')
+      end
+    end
   end
 end