Perhaps just check to see that the names and other pertinent information match one to the other, as much as you can. Also make sure the check doesn't have anything crossed out, or press-type letters or typed on extra information on it.

A friend of mine was a victim of someone just using press-on letters to add "and Her Name" after his on the check. If it hadn't been off center, you'd never have know, and lots of cashiers didn't!