How to use "shift" in a sentence

His shift finishes in five minutes, but there is no one around in Howarth's quiet police station, and so he leads the woman to the first interview room and tries to suppress the image of a pint of beer in the Black Bull pub.

A group had gone down a while ago and would be returning for their last stand at the tables before a whole new staff came on duty with the shift change

That's why we're stuck with night-shift, baby-sitting duty like this."