If based on an illegal purpose or contrary to public policy, a contract is void.

If you've got any evidence that dwelling is being used for illegal purposes, I'd like to see it.

Any information supplied is snapped up and typically used for illegal purposes.

Q. And on the other hand, your hundred thousand are intended for no illegal purpose.

The creation of a process used for illegal purposes is a parole violation.

But after this checkpoint, the police say, they have no way to know how much is diverted for illegal purposes.

Inmates can also use the internet for other, illegal purposes.

'Is this going to be used for some illegal purpose?'

As a matter of principle, it is unacceptable that products should be used for illegal purposes.

Video is only made for listening and not for illegal purposes.