::Concerning the "gender gap", I think it would be nice to focus on different types of crimes (don't know if stats are easily available). I'm sure you'll find more "female crime" in some specialized sorts of crime, both in organized crime, petty crime and white-collar crime. The articles I've found were focused on "female gangs", it is of course more spectacular. It is true however that, say in business (money laundering, tax evasion, etc.), females generally enjoy less important positions than male, and have thus less easy access to the firm's money. I also wonder about different types of mafias (yakuzis, Korean, etc. - maybe some of these groups have prominent females organizing stuff - definitely not to be found in Machist Sicilian Mafia...) You could perhaps lift the matter of female kamikazes, but that's terrorism. It is a crime though, although politically motivated...