diff --git a/app/controllers/concerns/sample_actions.rb b/app/controllers/concerns/sample_actions.rb
index c70962372..07936b41f 100644
--- a/app/controllers/concerns/sample_actions.rb
+++ b/app/controllers/concerns/sample_actions.rb
@@ -11,7 +11,7 @@ module SampleActions
       params[:sample_ids].each do |id|
         sample = Sample.find_by_id(id)
 
-        if sample and can_delete_sample(sample)
+        if sample && can_update_or_delete_sample?(sample)
           sample.destroy
           counter_user += 1
         else
@@ -45,7 +45,7 @@ module SampleActions
   end
 
   def check_destroy_samples_permissions
-    unless can_delete_samples(@project.team)
+    unless can_delete_samples?(@project.team)
       render_403
     end
   end
diff --git a/app/controllers/samples_controller.rb b/app/controllers/samples_controller.rb
index bbbabf6ab..80aab5909 100644
--- a/app/controllers/samples_controller.rb
+++ b/app/controllers/samples_controller.rb
@@ -167,7 +167,7 @@ class SamplesController < ApplicationController
 
     respond_to do |format|
       if sample
-        if can_update_sample?(sample)
+        if can_update_or_delete_sample?(sample)
           if params[:sample]
             if params[:sample][:name]
               sample.name = params[:sample][:name]
@@ -325,13 +325,13 @@ class SamplesController < ApplicationController
   end
 
   def check_edit_permissions
-    unless can_update_sample?(@sample)
+    unless can_update_or_delete_sample?(@sample)
       render_403
     end
   end
 
   def check_destroy_permissions
-    unless can_delete_samples(@team)
+    unless can_update_or_delete_sample?(@sample)
       render_403
     end
   end
diff --git a/app/helpers/permission_helper.rb b/app/helpers/permission_helper.rb
index 265854b68..226bb9a67 100644
--- a/app/helpers/permission_helper.rb
+++ b/app/helpers/permission_helper.rb
@@ -644,13 +644,13 @@ module PermissionHelper
   # end
 
   # Only person who created sample can delete it
-  def can_delete_sample(sample)
-    sample.user == current_user
-  end
+  # def can_delete_sample(sample)
+  #   sample.user == current_user
+  # end
 
-  def can_delete_samples(team)
-    is_normal_user_or_admin_of_team(team)
-  end
+  # def can_delete_samples(team)
+  #   is_normal_user_or_admin_of_team(team)
+  # end
 
   def can_add_samples_to_module(my_module)
     is_technician_or_higher_of_project(my_module.experiment.project)
diff --git a/app/permissions/team.rb b/app/permissions/team.rb
index d883391f4..c53e76d1b 100644
--- a/app/permissions/team.rb
+++ b/app/permissions/team.rb
@@ -23,6 +23,11 @@ Canaid::Permissions.register_for(Team) do
   can :create_sample do |user, team|
     user.is_normal_user_or_admin_of_team?(team)
   end
+
+  # delete samples (general permission, not for specific sample)
+  can :delete_samples do |user, team|
+    user.is_normal_user_or_admin_of_team?(team)
+  end
 end
 
 Canaid::Permissions.register_for(UserTeam) do
@@ -62,8 +67,10 @@ Canaid::Permissions.register_for(Protocol) do
 end
 
 Canaid::Permissions.register_for(Sample) do
-  # edit sample
-  can :update_sample do |user, sample|
-    user.is_admin_of_team?(sample.team) || user == sample.user
+  # edit sample, delete sample
+  can :update_or_delete_sample do |user, sample|
+    user.is_admin_of_team?(sample.team) ||
+      user.is_normal_user_or_admin_of_team?(sample.team) &&
+        user == sample.user
   end
 end
diff --git a/app/views/shared/_samples.html.erb b/app/views/shared/_samples.html.erb
index 6a21ce410..f713fc0a0 100644
--- a/app/views/shared/_samples.html.erb
+++ b/app/views/shared/_samples.html.erb
@@ -99,7 +99,7 @@
     <span class="hidden-xs-custom"><%= t("samples.edit_sample") %></span>
   </button>
 
-  <% if can_delete_samples(@team) %>
+  <% if can_delete_samples?(@team) %>
     <button type="button" class="btn btn-default"
       id="deleteSamplesButton" data-target="#deleteSamples" data-toggle="modal" disabled>
       <span class="glyphicon glyphicon-trash"></span>