A female delinquent. Her "fairer gender" means that she can get away with a lot more --- or be punished a lot less (think Mary Kay Letourneau, who only served a comparatively short sentence for a super-serious crime that a man in the same position would likely have gotten decades of prison time) --- than a guy trying the same shenanigans.
The use of misscreants to aid in committing crimes has long been practiced --- people are just naturally more trusting of females, and so they tend not to be monitored so closely as their male counterparts would be. Adult men looking to steal from a place of business often send girls or younger women into said store beforehand to either distract the staffpeople or to commit the pilfering themselves.
by QuacksO July 23, 2019