I read an article based on a paper recently that concluded you could tell if someone were criminal from how they look. I was astounded at the bad science behind it - there was no attempt to mitigate for, or even mention, the possibility that it was hairstyle or someone generally looking like they have had a hard life that provided the (somewhat weak) correlation with criminality. Personally I don't think this study can conclude anything - in which case why did they bother?
As an aside - there is evidence that better looks are correlated with higher IQ. I know it is with me anyway ;)
The weakest correlation was with rapists - suggesting (to me) that men from all walks of life can be capable of rape, whereas someone who is in a gang, or trailer park, etc, is much more likely to commit and be caught for murder than some white collar dude.
Anyway, here are some of the pics used in the research. I'll post the answers and link the paper in a few days' time to give you a chance to see how you do!
Who are the criminals?