Yes, and it is a good way to show coworkers that improper behavior will not be tolerated.
No
No.
Yes, It is a legal obligation of the employer.
Yes.
An employer can ask an employee if they are retiring as long as it is not done in a way that does not discriminate. It is not legal for an employer to tell an employee to resign because of his age. Also, an employee does not have to answer if his boss asks if he is retiring.
I am not a lawyer, but I can't see this being legal anywhere.I can see it being perfectly legal for the employer to fire the employee that made them pay some other employee overtime, though.
how do you reducing employee risks?
yes
it is a male and female worker..x
No.
Get a lawyer.
By doing background checks on the employee before employing them. Some of these may be legal requirements and others due diligence in respect of the role the employee will be expected to perform.