From Russell Nelson’s comment to Bruce Schneier’s Crypto-Gram of 15 November 2003:
> A New York detective was once asked whether pickpockets in
> Manhattan dressed in suits and ties to facilitate their crimes
> subsequent escape. He responded by saying that in twenty years
> he had never arrested even one pickpocket in a tie.
Do you mean this as evidence to bolster your point or to counter it? It seems to me that if he never arrested even one pickpocket in a tie, that would be very good evidence that pickpockets wearing ties escape arrest.