I've dealt with this when I had to mop up after a predecessor made a habit of taking bungs at a government department.
My advice to you is that you should have absolutely nothing to do with this. You should forget the sale now (it's a possibility that it was only entertained in the first place because your associate thought the payoff would be likely).
If you can anonymously tip off this person's superior one way or another, you'll be doing a good thing for everyone (citizens, colleagues, bung-seeker) in the long run.
This advice only applies for government - in private enterprise this kind of thing is pretty much par for the course on very big sales, but in modern times it normally takes the form of valuable free stuff rather than cash.
My advice to you is that you should have absolutely nothing to do with this. You should forget the sale now (it's a possibility that it was only entertained in the first place because your associate thought the payoff would be likely).
If you can anonymously tip off this person's superior one way or another, you'll be doing a good thing for everyone (citizens, colleagues, bung-seeker) in the long run.
This advice only applies for government - in private enterprise this kind of thing is pretty much par for the course on very big sales, but in modern times it normally takes the form of valuable free stuff rather than cash.