Then, Graham, we would have to admit that no game teaches anything. I think that games do teach many things, as well as literature, cinema, TV and anything made for entertainment. In fact it's hard to imagine a game that doesn't (Tetris, may be ?). It's up to you to seriously use that knowledge in reality world.

When I spent many hours playing Indiana Jones and the Search of Atlantis with my kids, we enjoyed it, and learnt a lot about the legend and its origins, however we and my kids did not get involved in a real trip, so at least that time we did not need medical help. And the same happened to many people I know.

I don't have much time but will download some of the mentioned games and try them, and then I'll post my comments whether they teach crime techniques or not, because all I know of them is through other's comments.

Un abrazo - Andrés