Ottawa is justifying a set of intimate questions being asked applicants applying for jobs at the border.

The feds say its needed to ensure public safety.

Among the questions, how much do you drink, have you ever solicited the services of  a prostitute, do you gamble and have you ever committed an act of domestic abuse.

And there are plans to extend the survey to exisiting employees.

But the union representing Customs workers says if that's the case it will be suggesting to its members not to fill out the form.