diff --git a/cake/libs/model/behaviors/acl.php b/cake/libs/model/behaviors/acl.php
index dd86475572d..fc2893bfad8 100644
--- a/cake/libs/model/behaviors/acl.php
+++ b/cake/libs/model/behaviors/acl.php
@@ -43,7 +43,7 @@ class AclBehavior extends ModelBehavior {
  * @param mixed $config
  * @return void
  */
-	public function setup(&$model, $config = array()) {
+	public function setup($model, $config = array()) {
 		if (is_string($config)) {
 			$config = array('type' => $config);
 		}
@@ -67,7 +67,7 @@ public function setup(&$model, $config = array()) {
  * @return array
  * @link http://book.cakephp.org/view/1322/node
  */
-	public function node(&$model, $ref = null) {
+	public function node($model, $ref = null) {
 		$type = $this->__typeMaps[$this->settings[$model->name]['type']];
 		if (empty($ref)) {
 			$ref = array('model' => $model->name, 'foreign_key' => $model->id);
@@ -81,7 +81,7 @@ public function node(&$model, $ref = null) {
  * @param boolean $created True if this is a new record
  * @return void
  */
-	public function afterSave(&$model, $created) {
+	public function afterSave($model, $created) {
 		$type = $this->__typeMaps[$this->settings[$model->name]['type']];
 		$parent = $model->parentNode();
 		if (!empty($parent)) {
@@ -105,7 +105,7 @@ public function afterSave(&$model, $created) {
  *
  * @return void
  */
-	public function afterDelete(&$model) {
+	public function afterDelete($model) {
 		$type = $this->__typeMaps[$this->settings[$model->name]['type']];
 		$node = Set::extract($this->node($model), "0.{$type}.id");
 		if (!empty($node)) {
diff --git a/cake/libs/model/behaviors/translate.php b/cake/libs/model/behaviors/translate.php
index 645caab0dc8..e480a720f6d 100644
--- a/cake/libs/model/behaviors/translate.php
+++ b/cake/libs/model/behaviors/translate.php
@@ -51,7 +51,7 @@ class TranslateBehavior extends ModelBehavior {
  * @param array $config Array of configuration information.
  * @return mixed
  */
-	public function setup(&$model, $config = array()) {
+	public function setup($model, $config = array()) {
 		$db = ConnectionManager::getDataSource($model->useDbConfig);
 		if (!$db->connected) {
 			trigger_error(
@@ -73,7 +73,7 @@ public function setup(&$model, $config = array()) {
  * @param Model $model Model being detached.
  * @return void
  */
-	public function cleanup(&$model) {
+	public function cleanup($model) {
 		$this->unbindTranslation($model);
 		unset($this->settings[$model->alias]);
 		unset($this->runtime[$model->alias]);
@@ -86,7 +86,7 @@ public function cleanup(&$model) {
  * @param array $query Array of Query parameters.
  * @return array Modified query
  */
-	public function beforeFind(&$model, $query) {
+	public function beforeFind($model, $query) {
 		$this->runtime[$model->alias]['virtualFields'] = $model->virtualFields;
 		$locale = $this->_getLocale($model);
 		if (empty($locale)) {
@@ -196,7 +196,7 @@ public function beforeFind(&$model, $query) {
  * @param boolean $primary Did the find originate on $model.
  * @return array Modified results
  */
-	public function afterFind(&$model, $results, $primary) {
+	public function afterFind($model, $results, $primary) {
 		$model->virtualFields = $this->runtime[$model->alias]['virtualFields'];
 		$this->runtime[$model->alias]['virtualFields'] = $this->runtime[$model->alias]['fields'] = array();
 		$locale = $this->_getLocale($model);
@@ -242,7 +242,7 @@ public function afterFind(&$model, $results, $primary) {
  * @param Model $model Model invalidFields was called on.
  * @return boolean
  */
-	public function beforeValidate(&$model) {
+	public function beforeValidate($model) {
 		$locale = $this->_getLocale($model);
 		if (empty($locale)) {
 			return true;
@@ -276,7 +276,7 @@ public function beforeValidate(&$model) {
  * @param boolean $created Whether or not the save created a record.
  * @return void
  */
-	public function afterSave(&$model, $created) {
+	public function afterSave($model, $created) {
 		if (!isset($this->runtime[$model->alias]['beforeSave'])) {
 			return true;
 		}
@@ -284,7 +284,7 @@ public function afterSave(&$model, $created) {
 		$tempData = $this->runtime[$model->alias]['beforeSave'];
 		unset($this->runtime[$model->alias]['beforeSave']);
 		$conditions = array('model' => $model->alias, 'foreign_key' => $model->id);
-		$RuntimeModel =& $this->translateModel($model);
+		$RuntimeModel = $this->translateModel($model);
 
 		foreach ($tempData as $field => $value) {
 			unset($conditions['content']);
@@ -319,8 +319,8 @@ public function afterSave(&$model, $created) {
  * @param Model $model Model the callback was run on.
  * @return void
  */
-	public function afterDelete(&$model) {
-		$RuntimeModel =& $this->translateModel($model);
+	public function afterDelete($model) {
+		$RuntimeModel = $this->translateModel($model);
 		$conditions = array('model' => $model->alias, 'foreign_key' => $model->id);
 		$RuntimeModel->deleteAll($conditions);
 	}
@@ -331,12 +331,12 @@ public function afterDelete(&$model) {
  * @param Model $model Model the locale needs to be set/get on.
  * @return mixed string or false
  */
-	protected function _getLocale(&$model) {
+	protected function _getLocale($model) {
 		if (!isset($model->locale) || is_null($model->locale)) {
 			if (!class_exists('I18n')) {
 				App::import('Core', 'i18n');
 			}
-			$I18n =& I18n::getInstance();
+			$I18n = I18n::getInstance();
 			$I18n->l10n->get(Configure::read('Config.language'));
 			$model->locale = $I18n->l10n->locale;
 		}
@@ -353,7 +353,7 @@ protected function _getLocale(&$model) {
  * @param Model $model Model to get a translatemodel for.
  * @return object
  */
-	public function &translateModel(&$model) {
+	public function translateModel($model) {
 		if (!isset($this->runtime[$model->alias]['model'])) {
 			if (!isset($model->translateModel) || empty($model->translateModel)) {
 				$className = 'I18nModel';
@@ -380,12 +380,12 @@ public function &translateModel(&$model) {
  * @param boolean $reset
  * @return bool
  */
-	function bindTranslation(&$model, $fields, $reset = true) {
+	function bindTranslation($model, $fields, $reset = true) {
 		if (is_string($fields)) {
 			$fields = array($fields);
 		}
 		$associations = array();
-		$RuntimeModel =& $this->translateModel($model);
+		$RuntimeModel = $this->translateModel($model);
 		$default = array('className' => $RuntimeModel->alias, 'foreignKey' => 'foreign_key');
 
 		foreach ($fields as $key => $value) {
@@ -453,7 +453,7 @@ function bindTranslation(&$model, $fields, $reset = true) {
  *    unbind all original translations
  * @return bool
  */
-	function unbindTranslation(&$model, $fields = null) {
+	function unbindTranslation($model, $fields = null) {
 		if (empty($fields) && empty($this->settings[$model->alias])) {
 			return false;
 		}
@@ -464,7 +464,7 @@ function unbindTranslation(&$model, $fields = null) {
 		if (is_string($fields)) {
 			$fields = array($fields);
 		}
-		$RuntimeModel =& $this->translateModel($model);
+		$RuntimeModel = $this->translateModel($model);
 		$associations = array();
 
 		foreach ($fields as $key => $value) {
@@ -499,15 +499,13 @@ function unbindTranslation(&$model, $fields = null) {
 		return true;
 	}
 }
-if (!defined('CAKEPHP_UNIT_TEST_EXECUTION')) {
 
 /**
  * @package       cake
  * @subpackage    cake.cake.libs.model.behaviors
  */
-	class I18nModel extends AppModel {
-		public $name = 'I18nModel';
-		public $useTable = 'i18n';
-		public $displayField = 'field';
-	}
+class I18nModel extends AppModel {
+	public $name = 'I18nModel';
+	public $useTable = 'i18n';
+	public $displayField = 'field';
 }
diff --git a/cake/tests/cases/libs/model/models.php b/cake/tests/cases/libs/model/models.php
index 33a566edffa..b116962b0fa 100644
--- a/cake/tests/cases/libs/model/models.php
+++ b/cake/tests/cases/libs/model/models.php
@@ -2591,38 +2591,6 @@ class MyCategoriesMyProduct extends CakeTestModel {
 	public $name = 'MyCategoriesMyProduct';
 }
 
-/**
- * I18nModel class
- *
- * @package       cake
- * @subpackage    cake.tests.cases.libs.model
- */
-class I18nModel extends CakeTestModel {
-
-/**
- * name property
- *
- * @var string 'I18nModel'
- * @access public
- */
-	public $name = 'I18nModel';
-
-/**
- * useTable property
- *
- * @var string 'i18n'
- * @access public
- */
-	public $useTable = 'i18n';
-
-/**
- * displayField property
- *
- * @var string 'field'
- * @access public
- */
-	public $displayField = 'field';
-}
 
 /**
  * NumberTree class
@@ -2662,7 +2630,7 @@ class NumberTree extends CakeTestModel {
  */
 	function initialize($levelLimit = 3, $childLimit = 3, $currentLevel = null, $parent_id = null, $prefix = '1', $hierachial = true) {
 		if (!$parent_id) {
-			$db =& ConnectionManager::getDataSource($this->useDbConfig);
+			$db = ConnectionManager::getDataSource($this->useDbConfig);
 			$db->truncate($this->table);
 			$this->save(array($this->name => array('name' => '1. Root')));
 			$this->initialize($levelLimit, $childLimit, 1, $this->id, '1', $hierachial);