diff --git a/workflow/engine/src/ProcessMaker/Services/Api/Cases.php b/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
index 4845e8847..7c599236b 100644
--- a/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
+++ b/workflow/engine/src/ProcessMaker/Services/Api/Cases.php
@@ -2,19 +2,18 @@
 namespace ProcessMaker\Services\Api;
 
 
-use AppDocument;
 use AppDelegation;
 use AppDelegationPeer;
+use AppDocument;
 use Criteria;
 use Exception;
 use ListUnassigned;
 use Luracast\Restler\RestException;
 use ProcessMaker\BusinessModel\Cases as BmCases;
 use ProcessMaker\BusinessModel\User as BmUser;
-use ProcessMaker\BusinessModel\ProcessSupervisor as BmProcessSupervisor;
-use ProcessMaker\Util\DateTime;
-use ProcessMaker\BusinessModel\Validator;
 use ProcessMaker\Services\Api;
+use ProcessMaker\Util\DateTime;
+use RBAC;
 
 
 /**
@@ -40,6 +39,28 @@ class Cases extends Api
         "note_date"
     ];
 
+    /**
+     * Constructor of the class
+     * We will to define the $RBAC definition
+     */
+    public function __construct()
+    {
+        global $RBAC;
+        if (!isset($RBAC)) {
+            $RBAC = RBAC::getSingleton(PATH_DATA, session_id());
+            $RBAC->sSystem = 'PROCESSMAKER';
+            $RBAC->initRBAC();
+            $RBAC->loadUserRolePermission($RBAC->sSystem, $this->getUserId());
+        }
+    }
+
+    /**
+     * This function adds customized validations for allow the access to functions
+     * If does not have access will be return 401
+     *
+     * @return boolean
+     * @throws Exception
+    */
     public function __isAllowed()
     {
         try {
@@ -657,10 +678,11 @@ class Cases extends Api
         $search = ''
     ) {
         try {
-            $dataList['userId'] = $this->getUserId();
+            global $RBAC;
+            //If the user does not have PM_ALLCASES we will be able to search for cases in which the user has participated
+            $dataList['userId'] = ($RBAC->userCanAccess('PM_ALLCASES') == 1)? '' : $this->getUserId();
             $dataList['action'] = 'search';
             $dataList['paged']  = false;
-
             $dataList['start'] = $start;
             $dataList['limit'] = $limit;
             $dataList['sort'] = $sort;
@@ -713,10 +735,11 @@ class Cases extends Api
         $search = ''
     ) {
         try {
-            $dataList['userId'] = $this->getUserId();
+            global $RBAC;
+            //If the user does not have PM_ALLCASES we will be able to search for cases in which the user has participated
+            $dataList['userId'] = ($RBAC->userCanAccess('PM_ALLCASES') == 1)? '' : $this->getUserId();
             $dataList['action'] = 'search';
             $dataList['paged']  = true;
-
             $dataList['start'] = $start;
             $dataList['limit'] = $limit;
             $dataList['sort'] = $sort;