I just have come across a blog that I had a chance of viewing some time ago... It's "The Policeman's Blog". The writer for this blog is David Copperfield, I suppose so, as there is no section "about me" or I couldn't find it. Mr Copperfield seems to be one of these people who are not afraid to speak aloud (or write "aloud")...what he thinks.
The coppers blog expect provides many comments from an ordinary life of a policeman, as well as huge section of different links to US Police blogs, Police Chefs blogs, Military blogs and so on the list is incredible...so you can find out a lot about different jobs and what they are about.
It would be probably a very useful site (or one of favourites) for someone who works or is interested in this kind of industry.
There is also a possibility to order a couple of books by Mr Copperfield or may be use "All UK Police Jobs" link - an add by Google. All of this possible on the blog as well as finding some alternative answers for current issues like "What's the answer to crime?" - "Chop their hands off", and yes we know that IS what you wanted to say Mr. Copperfield...