Night Watch is a fantastic book and has become one of my Discworld favourites over time.I agree with everyones general opinion on Carcer but dont you find Captain Swing just as disturbing in a slightly more insidious fashion?I also love Terry's take on the weapons law Swing institutes and the way he reflects the opinion on our own litle part of Roundworld,but as we know,Discworld is a world and a mirror of worlds.
I also noticed the themetic plot similarity between Night Watch and Life On Mars and enjoyed the series because of this.
I must mention that I love the full unabridged audio book of Night Watch & think Stephen Briggs does a fantastic job of narrating it.I'm proud to say I bought this at The Cunning Artificer in Wincanton,an adopted spiritual home of mine now! ,along with a Pyramids T Shirt and copy of Hatful Of Sky.
Yep,I'm a Pratchett nut and proud!