Any good books for criminal law?Watch
You could just look at revision aids for A Level Crime Special Study in the Law syllabus? No point in looking at a textbook for Undergraduate level, they're tricky and it gets quite dry and dull.
The one you'll most likely use at Uni is Smith & Hogan Criminal Law. It's the size of a dictionary and 90% of it isn't relevant.
Watch 24 Hours in Police Custody, especially episode one which you can find by stealth and subterfuge on the illegal internetz.
If you want some drama and irritatingly inaccurate court etiquette but a little bit of Law, watch "Silk". It's about the Criminal Bar, but still a good watch.
If you're interested in criminal law, the best thing to do would to go view cases in your local Magistrates' or Crown Court.
For your current stage of study I'd recommend using Law Express as it gives you a overview of cases and their decisions. There's a constant argument about which is better, Law Express or Concentrate , it's personal preference.
The problem with online lectures like the law bank on youtube for example is that they may no be up to date so beware.