Actually, when I was logging in, I was thinking about that. I was thinking similar to what anti-cop says, but were to committ several crimes agenst a person (StoreClerk on false arrest/pay fines rampage), the GUI's could get annoying. I think there should be a setting in the options menu where you can set it  to always press charges, never press charges(NOT reccomended) or Prompt(Use the GUI).
Annother idea would be to use the GUI like anti-cop said, but when someone decides to press charges, any crimes committed agenst that person by the same offender for the next 30 minutes will be charged agenst them.