diff --git a/app/assets/stylesheets/backoffice.scss b/app/assets/stylesheets/backoffice.scss
new file mode 100644
index 000000000..0a40b6354
--- /dev/null
+++ b/app/assets/stylesheets/backoffice.scss
@@ -0,0 +1,32 @@
+#backoffice_search {
+  .table {
+    tr th {
+      border-top: none
+    }
+  }
+
+  ul {
+    li {
+      margin-top: 11px;
+      a {
+        height: 45px;
+        h5 {
+          margin-top: 4px;
+        }
+      }
+    }
+
+    #search {
+      margin-top: 0;
+      a {
+        height: auto;
+      }
+      a:hover {
+        height: 56px;
+        background-color: transparent;
+        border: none;
+        padding: 11px 16px;
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/app/controllers/backoffice/dossiers_controller.rb b/app/controllers/backoffice/dossiers_controller.rb
index a286704b9..080972a8f 100644
--- a/app/controllers/backoffice/dossiers_controller.rb
+++ b/app/controllers/backoffice/dossiers_controller.rb
@@ -20,6 +20,18 @@ class Backoffice::DossiersController < ApplicationController
     total_dossiers_per_state
   end
 
+  def search
+    @search_terms = params[:search_terms]
+
+    @dossiers_search, @dossier = Dossier.search(current_gestionnaire, @search_terms)
+    @dossiers_search = @dossiers_search.decorate unless @dossiers_search.empty?
+    @dossier = @dossier.decorate unless @dossier.nil?
+
+    total_dossiers_per_state
+  rescue RuntimeError
+    @dossiers_search = []
+  end
+
   def valid
     initialize_instance_params params[:dossier_id]
 
diff --git a/app/models/dossier.rb b/app/models/dossier.rb
index 477164096..576d6f6ad 100644
--- a/app/models/dossier.rb
+++ b/app/models/dossier.rb
@@ -128,27 +128,43 @@ class Dossier < ActiveRecord::Base
     Dossier.joins(:procedure).where("state='closed' AND dossiers.procedure_id = procedures.id AND procedures.administrateur_id = #{current_gestionnaire.administrateur_id}").order('updated_at ASC')
   end
 
-  def self.search terms
-    return if terms.blank?
+  def self.search current_gestionnaire, terms
+    return [], nil if terms.blank?
+
     dossiers = Dossier.arel_table
     users = User.arel_table
     etablissements = Etablissement.arel_table
     entreprises = Entreprise.arel_table
+
     composed_scope = self.joins('LEFT OUTER JOIN users ON users.id = dossiers.user_id')
                          .joins('LEFT OUTER JOIN entreprises ON entreprises.dossier_id = dossiers.id')
                          .joins('LEFT OUTER JOIN etablissements ON etablissements.dossier_id = dossiers.id')
+
     terms.split.each do |word|
       query_string = "%#{word}%"
       query_string_start_with = "#{word}%"
+
       composed_scope = composed_scope.where(
           dossiers[:nom_projet].matches(query_string).or\
-              users[:email].matches(query_string).or\
-              dossiers[:id].eq(word).or\
-              etablissements[:siret].matches(query_string_start_with).or\
-              entreprises[:raison_sociale].matches(query_string)
-      )
+          users[:email].matches(query_string).or\
+          etablissements[:siret].matches(query_string_start_with).or\
+          entreprises[:raison_sociale].matches(query_string))
     end
-    composed_scope
+
+    #TODO refactor
+    composed_scope = composed_scope.where(
+        dossiers[:id].eq_any(current_gestionnaire.dossiers.ids).and\
+        dossiers[:state].does_not_match('draft'))
+
+    begin
+      if Float(terms) && terms.to_i <= 2147483647 && current_gestionnaire.dossiers.ids.include?(terms.to_i)
+        dossier = Dossier.where("state != 'draft'").find(terms.to_i)
+      end
+    rescue ArgumentError, ActiveRecord::RecordNotFound
+      dossier = nil
+    end
+
+    return composed_scope, dossier
   end
 
   private
diff --git a/app/views/backoffice/dossiers/_onglets.html.haml b/app/views/backoffice/dossiers/_onglets.html.haml
index c31d8190e..a9cbba804 100644
--- a/app/views/backoffice/dossiers/_onglets.html.haml
+++ b/app/views/backoffice/dossiers/_onglets.html.haml
@@ -4,15 +4,22 @@
 %ul.nav.nav-tabs
   %li{class: "#{'active' unless @dossiers_a_traiter.nil?  }"}
     %a{:href => "#{url_for :backoffice_dossiers_a_traiter}"}
-      %strong.text-danger
+      %h5.text-danger
         = "À traiter (#{@dossiers_a_traiter_total})"
   %li{class: "#{'active' unless @dossiers_en_attente.nil?  }"}
     %a{:href => "#{url_for :backoffice_dossiers_en_attente}"}
-      %strong.text-info
+      %h5.text-info
         ="En attente (#{@dossiers_en_attente_total})"
   %li{class: "#{'active' unless @dossiers_termine.nil?  }"}
     %a{:href => "#{url_for :backoffice_dossiers_termine}"}
-      %strong.text-success
+      %h5.text-success
         = "Terminé (#{@dossiers_termine_total})"
-
+  %li#search{class: "#{'active' unless @dossiers_search.nil?}", style:'float:right'}
+    %a
+      = form_tag(backoffice_dossiers_search_url, method: :post) do
+        .input-group{style:'width: 300px'}
+          = text_field_tag('search_terms', "#{@search_terms unless @search_terms.nil? }", id: 'search_terms', placeholder: "Rechercher un dossier ...", class:'form-control')
+          %span.input-group-btn
+            = button_tag('', id:'search_button', class:'btn btn-default') do
+              %i.fa.fa-search
 %br
\ No newline at end of file
diff --git a/app/views/backoffice/dossiers/search.html.haml b/app/views/backoffice/dossiers/search.html.haml
new file mode 100644
index 000000000..54dd97a58
--- /dev/null
+++ b/app/views/backoffice/dossiers/search.html.haml
@@ -0,0 +1,47 @@
+#backoffice_search
+  = render partial: 'onglets'
+
+  - unless @dossier.nil?
+    %table.table{style:'background-color: rgba(248, 248, 255, 0.8)'}
+      %tr
+        %th{colspan:2}
+          %h4
+            = "Dossier N°#{@dossier.id}"
+      %tr
+        %td.col-md-2.col-lg-1
+          = @dossier.id
+        %td.col-md-4.col-lg-3
+          = link_to(@dossier.nom_projet, "/backoffice/dossiers/#{@dossier.id}")
+        %td.col-md-2.col-lg-3
+          = @dossier.entreprise.raison_sociale
+        %td.col-md-4.col-lg-2
+          = @dossier.user.email
+        %td.col-md-2.col-lg-2
+          = @dossier.etablissement.siret
+        %td.col-md-1.col-lg-1
+          = @dossier.state_fr
+    %br
+
+  - if @dossiers_search.empty? && @dossier.nil?
+    %div{style: 'text-align:center'}
+      %h4 Aucun dossier trouvé
+
+  - elsif !@dossiers_search.empty?
+    %table.table
+      %tr
+        %th.col-md-2.col-lg-1 ID dossier
+        %th.col-md-4.col-lg-3 Dossier
+        %th.col-md-2.col-lg-3 Raison Sociale
+        %th.col-md-4.col-lg-2 Email contact
+        %th.col-md-2.col-lg-2 SIRET
+        %th.col-md-1.col-lg-1 État
+
+      - @dossiers_search.each do |dossier|
+        %tr
+          %td= dossier.id
+          %td
+            = link_to(dossier.nom_projet, "/backoffice/dossiers/#{dossier.id}")
+          %td= dossier.entreprise.raison_sociale
+          %td= dossier.user.email
+          %td= dossier.etablissement.siret
+          %td= dossier.state_fr
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index 90272b2f1..ee0fed316 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -54,6 +54,7 @@ Rails.application.routes.draw do
     get 'dossiers/a_traiter' => 'dossiers#a_traiter'
     get 'dossiers/en_attente' => 'dossiers#en_attente'
     get 'dossiers/termine' => 'dossiers#termine'
+    post 'dossiers/search' => 'dossiers#search'
 
     resources :dossiers do
       post 'valid' => 'dossiers#valid'
diff --git a/spec/controllers/backoffice/dossiers_controller_spec.rb b/spec/controllers/backoffice/dossiers_controller_spec.rb
index 3639a4a4d..1075f03cf 100644
--- a/spec/controllers/backoffice/dossiers_controller_spec.rb
+++ b/spec/controllers/backoffice/dossiers_controller_spec.rb
@@ -68,6 +68,18 @@ describe Backoffice::DossiersController, type: :controller do
     end
   end
 
+  describe 'POST #search' do
+    before do
+      sign_in gestionnaire
+    end
+
+    it 'returns http success' do
+      post :search, search_terms: 'test'
+      expect(response).to have_http_status(200)
+    end
+
+  end
+
   describe 'POST #valid' do
     before do
       dossier.initiated!
diff --git a/spec/features/backoffice/search_file_spec.rb b/spec/features/backoffice/search_file_spec.rb
new file mode 100644
index 000000000..7466b451f
--- /dev/null
+++ b/spec/features/backoffice/search_file_spec.rb
@@ -0,0 +1,58 @@
+require 'spec_helper'
+
+feature 'search file on gestionnaire backoffice' do
+  let(:administrateur) { create(:administrateur) }
+  let(:gestionnaire) { create(:gestionnaire, administrateur: administrateur) }
+
+  before do
+    login_as gestionnaire, scope: :gestionnaire
+  end
+
+  context 'when gestionnaire is logged in' do
+    context 'when he click on search button' do
+      let(:terms) { '' }
+
+      before do
+        visit backoffice_dossiers_a_traiter_url
+        page.find_by_id(:search_terms).set terms
+        page.find_by_id(:search_button).click
+      end
+
+      it { expect(page).to have_css('#backoffice_search') }
+
+      context 'when terms input is empty' do
+        it { expect(page).to have_content('Aucun dossier trouvé') }
+      end
+
+      context 'when terms input is informed' do
+        let(:terms) { 'test' }
+
+        it 'terms stay in input after search' do
+          expect(page.find_by_id('search_terms').value).to eq(terms)
+        end
+
+        context 'when terms input does not return result' do
+          it { expect(page).to have_content('Aucun dossier trouvé') }
+        end
+
+        context 'when terms input does return result' do
+          let!(:procedure) { create(:procedure, administrateur: administrateur) }
+          let!(:dossier) { create(:dossier, :with_entreprise, :with_user, procedure: procedure, state: 'initiated') }
+          let!(:dossier_2) { create(:dossier, :with_user, procedure: procedure, state: 'initiated', nom_projet: 'Projet de test') }
+
+          let(:terms) { dossier.nom_projet }
+
+          it { expect(page).not_to have_content('Projet de test') }
+
+          it { expect(page).to have_content(dossier.nom_projet) }
+
+          context "when terms is a file's id" do
+            let(:terms) { dossier.id }
+
+            it { expect(page).to have_content("Dossier N°#{dossier.id}") }
+          end
+        end
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/spec/models/dossier_spec.rb b/spec/models/dossier_spec.rb
index a3d14acd6..627e932ce 100644
--- a/spec/models/dossier_spec.rb
+++ b/spec/models/dossier_spec.rb
@@ -419,11 +419,24 @@ describe Dossier do
     end
 
     describe '.search' do
-      subject { described_class.search(terms) }
+      subject { liste_dossiers }
 
-      let!(:dossier_1) { create(:dossier, nom_projet: 'Projet de test', user: create(:user, email: 'contact@test.com')) }
-      let!(:dossier_2) { create(:dossier, nom_projet: 'Lili et Marcel', user: create(:user, email: 'plop@gmail.com')) }
-      let!(:dossier_3) { create(:dossier, nom_projet: 'Construction projet marcel', user: create(:user, email: 'peace@clap.fr')) }
+      let(:liste_dossiers) { described_class.search(gestionnaire_1, terms)[0] }
+      let(:dossier) { described_class.search(gestionnaire_1, terms)[1] }
+
+      let(:administrateur_1) { create(:administrateur) }
+      let(:administrateur_2) { create(:administrateur) }
+
+      let(:gestionnaire_1) { create(:gestionnaire, administrateur: administrateur_1) }
+      let(:gestionnaire_2) { create(:gestionnaire, administrateur: administrateur_2) }
+
+      let(:procedure_1) { create(:procedure, administrateur: administrateur_1) }
+      let(:procedure_2) { create(:procedure, administrateur: administrateur_2) }
+
+      let!(:dossier_0) { create(:dossier, nom_projet: 'je suis un brouillon', state: 'draft', procedure: procedure_1, user: create(:user, email: 'brouillon@clap.fr')) }
+      let!(:dossier_1) { create(:dossier, nom_projet: 'Projet de test', state: 'initiated', procedure: procedure_1, user: create(:user, email: 'contact@test.com')) }
+      let!(:dossier_2) { create(:dossier, nom_projet: 'Lili et Marcel', state: 'initiated', procedure: procedure_1, user: create(:user, email: 'plop@gmail.com')) }
+      let!(:dossier_3) { create(:dossier, nom_projet: 'Construction projet marcel', state: 'initiated', procedure: procedure_2, user: create(:user, email: 'peace@clap.fr')) }
 
       let!(:etablissement_1) { create(:etablissement, entreprise: create(:entreprise, raison_sociale: 'OCTO Academy', dossier: dossier_1), dossier: dossier_1, siret: '41636169600051') }
       let!(:etablissement_2) { create(:etablissement, entreprise: create(:entreprise, raison_sociale: 'Plop octo', dossier: dossier_2), dossier: dossier_2, siret: '41816602300012') }
@@ -432,42 +445,55 @@ describe Dossier do
       describe 'search is empty' do
         let(:terms) { '' }
 
-        it { expect(subject).to eq(nil) }
+        it { expect(subject.size).to eq(0) }
+      end
+
+      describe 'search draft file' do
+        let(:terms) { 'brouillon' }
+
+        it { expect(subject.size).to eq(0) }
       end
 
       describe 'search on file title' do
         let(:terms) { 'Marcel' }
 
-        it { expect(subject.size).to eq(2) }
+        it { expect(subject.size).to eq(1) }
       end
 
       describe 'search on contact email' do
         let(:terms) { 'clap' }
 
-        it { expect(subject.size).to eq(1) }
+        it { expect(subject.size).to eq(0) }
       end
 
       describe 'search on ID dossier' do
         let(:terms) { "#{dossier_2.id}" }
 
-        it { expect(subject.size).to eq(1) }
+        it { expect(dossier.id).to eq(dossier_2.id) }
       end
 
       describe 'search on SIRET' do
+        context 'when is part of SIRET' do
+          let(:terms) { '4181' }
 
-        let(:terms) { '4181' }
+          it { expect(subject.size).to eq(1) }
+        end
 
-        it { expect(subject.size).to eq(2) }
+        context 'when is a complet SIRET' do
+          let(:terms) { '41816602300012' }
+
+          it { expect(subject.size).to eq(1) }
+        end
       end
 
       describe 'search on raison social' do
         let(:terms) { 'OCTO' }
 
-        it { expect(subject.size).to eq(3) }
+        it { expect(subject.size).to eq(2) }
       end
 
       describe 'search on multiple fields' do
-        let(:terms) { 'octo peace' }
+        let(:terms) { 'octo test' }
 
         it { expect(subject.size).to eq(1) }
       end