Don't do the crime if you can't do the review.

A man in Britain named Christian Willoughby who was arrested for a misdemeanor may have made things worse for himself when he snapped photos and wrote a review of his jail cell, which he posted on Facebook.

That's one way to pass the time when you're locked up.

Willoughby reportedly took the pictures on his iPad. How the cops failed to seize it when booking him remains a pretty big mystery.

Guess what? Police are not amused and say it's being handled as a security mishap.

"We take any such breach of security and detainee safety extremely seriously and will be carrying out a review of our detainee management to identify any lessons learned and prevent further reoccurrences in the future," said the chief inspector. "The force's Professional Standards Branch are investigating the circumstances of the incident."

It sounds like they can use some "Yelp" when it comes to making sure this doesn't happen again.