Some time ago the National Archives posted a message on their website saying that they were planning to scan three million crime, court and convict records. This was supposed to be ready by December 2012. I have not seen anything on their website to suggest it's available.

However, I've come across several stories on the internet that suggests there's already a database on Ancestry.uk that has old mugshots from England dating back to the 1800s.
If these records do exist on Ancestry, I have yet to find them.

Does anyone know if these are available and where I can find them?.

Trying to find anything on this site seems almost impossible.