Criticism of episode 2 *SPOILERS*
Episode 2 of Body Farm was great television but it was ruined for anyone observant enough to notice the number-plate on the doctors car when he left the millionaires residence for the first time. So from about 15 minutes in I knew he had done it because it was the same plate on the car at the start of the episode.
So please, BBC, don't overlook the obvious.