diff --git a/CRM/Contact/BAO/Query.php b/CRM/Contact/BAO/Query.php
index c8818f4..52c5d8c 100644
--- a/CRM/Contact/BAO/Query.php
+++ b/CRM/Contact/BAO/Query.php
@@ -1601,6 +1601,10 @@ class CRM_Contact_BAO_Query {
       }
     }

+    if(array_key_exists('op', $formValues)) {
+      $sqloperator = CRM_Report_Form::getSQLOperator($formValues['op']);
+    }
+
     foreach ($formValues as $id => $values) {
       if (self::isAlreadyProcessedForQueryFormat($values)) {
         $params[] = $values;
@@ -1621,7 +1625,8 @@ class CRM_Contact_BAO_Query {
             $subType[$types[1]] = $types[1];
           }
         }
-        $params[] = array('contact_type', 'IN', $contactType, 0, 0);
+        $operatorSQL = !empty($sqloperator) ? 'NOT IN' : 'IN';
+        $params[] = array('contact_type', $operatorSQL, $contactType, 0, 0);
         if ($subType) {
           $params[] = array('contact_sub_type', 'IN', $subType, 0, 0);
         }
@@ -2042,15 +2047,35 @@ class CRM_Contact_BAO_Query {
     $this->includeContactIds();
     if (!empty($this->_params)) {
       foreach (array_keys($this->_params) as $id) {
-        if (empty($this->_params[$id][0])) {
-          continue;
+        if ($this->_params[$id][0] == 'op') {
+          $operatorFound = TRUE;
+          $operatorSQL = CRM_Report_Form::getSQLOperator($this->_params[$id][2]);
         }
-        // check for both id and contact_id
-        if ($this->_params[$id][0] == 'id' || $this->_params[$id][0] == 'contact_id') {
-          $this->_where[0][] = self::buildClause("contact_a.id", $this->_params[$id][1], $this->_params[$id][2]);
+      }
+      if(isset($operatorFound)) {
+        foreach ($this->_params as $key => $value) {
+          $value['operator'] = $operatorSQL;
+          // check for both id and contact_id
+          if ($value[0] == 'id' || $value[0] == 'contact_id') {
+            $this->_where[0][] = self::buildClause("contact_a.id", $value[1], $value[2]);
+          }
+          else {
+            $this->whereClauseSingle($value, $apiEntity);
+          }
         }
-        else {
-          $this->whereClauseSingle($this->_params[$id], $apiEntity);
+      }
+      else {
+        foreach (array_keys($this->_params) as $id) {
+          if (empty($this->_params[$id][0])) {
+            continue;
+          }
+          // check for both id and contact_id
+          if ($this->_params[$id][0] == 'id' || $this->_params[$id][0] == 'contact_id') {
+            $this->_where[0][] = self::buildClause("contact_a.id", $this->_params[$id][1], $this->_params[$id][2]);
+          }
+          else {
+            $this->whereClauseSingle($this->_params[$id], $apiEntity);
+          }
         }
       }

@@ -2898,7 +2923,8 @@ class CRM_Contact_BAO_Query {
    */
   public function contactSubType(&$values) {
     list($name, $op, $value, $grouping, $wildcard) = $values;
-    $this->includeContactSubTypes($value, $grouping, $op);
+    $operatorForQuery = !empty($values['operator']) ? $values['operator'] : $op;
+    $this->includeContactSubTypes($value, $grouping, $operatorForQuery);
   }

   /**