diff --git a/lib/tasks/support.rake b/lib/tasks/support.rake
index 1060aebb9..b708e8c49 100644
--- a/lib/tasks/support.rake
+++ b/lib/tasks/support.rake
@@ -42,4 +42,48 @@ namespace :support do
       end
     end
   end
+
+  task remove_ex_team_member: :environment do
+    super_admin = SuperAdmin.find_by(email: ENV['SUPER_ADMIN_EMAIL'])
+    fail "Must specify the ADMIN_EMAIL of the operator performing the deletion (yourself)" if super_admin.nil?
+    super_admin_admin = User.find_by(email: super_admin.email).administrateur
+
+    user = User.find_by!(email: ENV['USER_EMAIL'])
+    fail "Must specify a USER_EMAIL" if user.nil?
+
+    ActiveRecord::Base.transaction do
+      # destroy all en_instruction dossier
+      # because the normal workflow forbid to hide them.
+      rake_puts "brutally deleting #{user.dossiers.en_instruction.count} en_instruction dossiers"
+      user.dossiers.en_instruction.destroy_all
+
+      # remove all the other dossier from the user side
+      rake_puts "hide #{user.reload.dossiers.count} dossiers"
+      user.delete_and_keep_track_dossiers(super_admin)
+
+      owned_procedures, shared_procedures = user.administrateur
+        .procedures
+        .partition { _1.administrateurs.one? }
+
+      rake_puts "unlink #{shared_procedures.count} shared procedures"
+      shared_procedures.each { _1.administrateurs.delete(user.administrateur) }
+
+      procedures_without_dossier, procedures_with_dossiers =
+        owned_procedures.partition { _1.dossiers.empty? }
+
+      rake_puts "discard #{procedures_without_dossier.count} procedures without dossier"
+      procedures_without_dossier.each { _1.discard_and_keep_track!(super_admin) }
+
+      procedures_with_only_admin_dossiers,
+        other_procedures = procedures_with_dossiers.partition do |p|
+          p.dossiers.all? { _1.user == user || _1.deleted_user_email_never_send == user.email }
+        end
+
+      rake_puts "discard #{procedures_with_only_admin_dossiers.count} procedures with only admin dossiers"
+      # TODO: clean this ugly hack to delete dossier from admin side
+      procedures_with_only_admin_dossiers.each { _1.discard_and_keep_track!(super_admin_admin) }
+
+      rake_puts "#{other_procedures.count} remaining"
+    end
+  end
 end
diff --git a/spec/lib/tasks/support_spec.rb b/spec/lib/tasks/support_spec.rb
new file mode 100644
index 000000000..dbc682f62
--- /dev/null
+++ b/spec/lib/tasks/support_spec.rb
@@ -0,0 +1,66 @@
+describe 'support' do
+  describe 'remove_ex_team_member' do
+    let(:rake_task) { Rake::Task['support:remove_ex_team_member'] }
+
+    subject do
+      ENV['SUPER_ADMIN_EMAIL'] = super_admin.email
+      ENV['USER_EMAIL'] = admin.email
+      rake_task.invoke
+    end
+    after { rake_task.reenable }
+
+    # the admin to remove
+    let(:admin) { create(:administrateur) }
+
+    # the super admin doing the removal
+    let(:super_admin) { create(:super_admin) }
+    let!(:super_admin_admin) { create(:administrateur, email: super_admin.email) }
+
+    context 'an empty procedure is discarded' do
+      let!(:empty_procedure) { create(:procedure, :published, administrateur: admin) }
+
+      it do
+        subject
+        expect(admin.procedures).to be_empty
+        expect(admin.procedures.with_discarded.discarded).to match_array(empty_procedure)
+      end
+    end
+
+    context 'a procedure only with the admins dossiers is discarded' do
+      let!(:procedure_with_admin_dossiers) { create(:procedure, :published, administrateur: admin) }
+      let!(:admin_instruction_dossier) { create(:dossier, :en_instruction, procedure: procedure_with_admin_dossiers, user: admin.user) }
+      let!(:admin_termine_dossier) { create(:dossier, :accepte, procedure: procedure_with_admin_dossiers, user: admin.user) }
+
+      it do
+        subject
+        expect(admin.procedures).to be_empty
+        expect(admin.procedures.with_discarded.discarded).to match_array(procedure_with_admin_dossiers)
+        expect { admin_instruction_dossier.reload }.to raise_error(ActiveRecord::RecordNotFound)
+        expect(admin_termine_dossier.reload.user).to be_nil
+      end
+    end
+
+    context 'a procedure only with others dossiers is kept' do
+      let!(:procedure_with_dossiers) { create(:procedure, :published, administrateur: admin) }
+      let!(:admin_dossier) { create(:dossier, :en_instruction, procedure: procedure_with_dossiers, user: admin.user) }
+      let!(:another_dossier) { create(:dossier, :en_instruction, procedure: procedure_with_dossiers) }
+
+      it do
+        subject
+        expect(admin.procedures).to match_array(procedure_with_dossiers)
+        expect { admin_dossier.reload }.to raise_error(ActiveRecord::RecordNotFound)
+      end
+    end
+
+    context 'a procedure shared with another admin' do
+      let!(:another_admin) { create(:administrateur) }
+      let!(:shared_procedure) { create(:procedure, :published, administrateurs: [admin, another_admin]) }
+
+      it do
+        subject
+        expect(admin.procedures).to be_empty
+        expect(another_admin.procedures).to match_array(shared_procedure)
+      end
+    end
+  end
+end