CTaskItem::getAccessController

static function getAccessController(int $executiveUserId): BitrixMainAccessAccessibleController
{
	if (!self::$accessController || !array_key_exists($executiveUserId, self::$accessController))
	{
		self::$accessController[$executiveUserId] = new BitrixTasksAccessTaskAccessController((int) $executiveUserId);
	}
	return self::$accessController[$executiveUserId];
}