diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 5a534f4ce..b8a02d2a5 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -51,22 +51,54 @@ class ApplicationController < ActionController::Base
 
   private
 
-  def set_raven_context
-    context = { ip_address: request.ip }
-
-    logged_models = [
+  def logged_users
+    @logged_users ||= [
       current_user,
       current_gestionnaire,
       current_administrateur,
       current_administration
     ].compact
+  end
 
-    context[:email] = logged_models.first&.email
-    context[:id]    = logged_models.first&.id
+  def logged_user_roles
+    roles = logged_users.map { |logged_user| logged_user.class.name }
+    roles.any? ? roles.join(', ') : 'Guest'
+  end
 
-    class_names = logged_models.map { |model| model.class.name }
-    context[:classes] = class_names.any? ? class_names.join(', ') : 'Guest'
+  def logged_user_info
+    logged_user = logged_users.first
+
+    if logged_user
+      {
+        id: logged_user.id,
+        email: logged_user.email
+      }
+    end
+  end
+
+  def set_raven_context
+    context = {
+      ip_address: request.ip,
+      roles: logged_user_roles
+    }
+    context.merge!(logged_user_info || {})
 
     Raven.user_context(context)
   end
+
+  def append_info_to_payload(payload)
+    payload.merge!({
+      user_agent: request.user_agent,
+      current_user: logged_user_info,
+      current_user_roles: logged_user_roles
+    }.compact)
+
+    if browser.known?
+      payload.merge!({
+        browser: browser.name,
+        browser_version: browser.version.to_s,
+        platform: browser.platform.name,
+      })
+    end
+  end
 end
diff --git a/config/initializers/logstasher.rb b/config/initializers/logstasher.rb
index 7d1be9caf..d85bb8d6a 100644
--- a/config/initializers/logstasher.rb
+++ b/config/initializers/logstasher.rb
@@ -2,4 +2,18 @@ if LogStasher.enabled
   LogStasher.add_custom_fields do |fields|
     fields[:type] = "tps"
   end
+
+  LogStasher.watch('process_action.action_controller') do |name, start, finish, id, payload, store|
+    store[:user_agent] = payload[:user_agent]
+    store[:browser] = payload[:browser]
+    store[:browser_version] = payload[:browser_version]
+    store[:platform] = payload[:platform]
+
+    store[:current_user_roles] = payload[:current_user_roles]
+
+    if payload[:current_user].present?
+      store[:current_user_id] = payload[:current_user][:id]
+      store[:current_user_email] = payload[:current_user][:email]
+    end
+  end
 end
diff --git a/spec/controllers/application_controller_spec.rb b/spec/controllers/application_controller_spec.rb
index 21f6dfd56..89d601eaa 100644
--- a/spec/controllers/application_controller_spec.rb
+++ b/spec/controllers/application_controller_spec.rb
@@ -12,11 +12,12 @@ describe ApplicationController, type: :controller do
     end
   end
 
-  describe 'set_raven_context' do
+  describe 'set_raven_context and append_info_to_payload' do
     let(:current_user) { nil }
     let(:current_gestionnaire) { nil }
     let(:current_administrateur) { nil }
     let(:current_administration) { nil }
+    let(:payload) { {} }
 
     before do
       expect(@controller).to receive(:current_user).and_return(current_user)
@@ -26,13 +27,16 @@ describe ApplicationController, type: :controller do
       allow(Raven).to receive(:user_context)
 
       @controller.send(:set_raven_context)
+      @controller.send(:append_info_to_payload, payload)
     end
 
     context 'when no one is logged in' do
       it do
         expect(Raven).to have_received(:user_context)
-          .with({ ip_address: '0.0.0.0', email: nil, id: nil, classes: 'Guest' })
+          .with({ ip_address: '0.0.0.0', roles: 'Guest' })
       end
+
+      it { expect(payload).to eq({ user_agent: 'Rails Testing', current_user_roles: 'Guest' }) }
     end
 
     context 'when a user is logged in' do
@@ -40,7 +44,18 @@ describe ApplicationController, type: :controller do
 
       it do
         expect(Raven).to have_received(:user_context)
-          .with({ ip_address: '0.0.0.0', email: current_user.email, id: current_user.id, classes: 'User' })
+          .with({ ip_address: '0.0.0.0', email: current_user.email, id: current_user.id, roles: 'User' })
+      end
+
+      it do
+        expect(payload).to eq({
+          user_agent: 'Rails Testing',
+          current_user: {
+            id: current_user.id,
+            email: current_user.email
+          },
+          current_user_roles: 'User'
+        })
       end
     end
 
@@ -52,7 +67,18 @@ describe ApplicationController, type: :controller do
 
       it do
         expect(Raven).to have_received(:user_context)
-          .with({ ip_address: '0.0.0.0', email: current_user.email, id: current_user.id, classes: 'User, Gestionnaire, Administrateur, Administration' })
+          .with({ ip_address: '0.0.0.0', email: current_user.email, id: current_user.id, roles: 'User, Gestionnaire, Administrateur, Administration' })
+      end
+
+      it do
+        expect(payload).to eq({
+          user_agent: 'Rails Testing',
+          current_user: {
+            id: current_user.id,
+            email: current_user.email
+          },
+          current_user_roles: 'User, Gestionnaire, Administrateur, Administration'
+        })
       end
     end
   end