How to use "checks" in a sentence

A majority held in restraint by constitutional checks and limitations, and always changing easily with deliberate changes of popular opinions and sentiments, is the only true sovereign of a free people

But just to be safe he pulls his new gun from the bag and checks it

He pulls the collar of his stolen coat up to cover his face, and he checks that no one can see the grey prison uniform that he is still wearing beneath it.

Sala waited in the pod as they made the final checks, bright lights blinding her from above.

lots of royalty checks to look forward to..

Dombey said, "They insist the system checks out perfectly."