Are you angry? Frustrated? Confused? Wary? How would you like to proceed?
I would proceed with using an Attorney to contact the Police to do something since they seem to busy to talk with you.
Costly yes, but worth pushing lazy police departments.
All the Attorney has to do is call or write a letter and supply the pictures.
If the cops do not want to do anything they department can be sued . Oops sometimes you have to be a bully.