code: public Filter getQueueFilter(PermissionManager permissionManager) {
  		if (permissionManager.hasPermission(FixedPermissions.TECHSUPPORT) || permissionManager.hasPermission(FixedPermissions.ADMIN)) {
  			return null;
  		}
  		Set<String> visibleQueues = getVisibleQueues(permissionManager);
  		Filter filters[] = new Filter[visibleQueues.size()];
  		int i=0;
  		for (String queueName: visibleQueues) {
  			filters[i++] = new Compare.Equal("queueName", queueName);
  		}
  		Filter statusFilter[] = new Filter[2];
  		statusFilter[0] = new Or(filters);
  		statusFilter[1] = new Compare.Equal("status", TaskStatus.WAIT);
  		
  		Filter userFilter[] = new Filter[2];
  		userFilter[0] = new Compare.Equal("lockedBy",permissionManager.getCurrentUser());
  		userFilter[1] = new Compare.Equal("status", TaskStatus.BUSY);
  
  		return new Or(new And(statusFilter),new And(userFilter));
  	}
docs: If we have the TECHSUPPORT or ADMIN permission then return null. Those users can see everything so no filter required.
  For the rest we only display queues they have permission to see and only processes in WAIT status.
  @param permissionManager
  @return filter