I think at this point I would have asked for the officer's supervisor, and demanded to know why exactly they would not pursue the case any further. If the supervisor had not provided good answers, I would have demanded that he provide his explanation IN WRITING, so that you could approach the District Attorney's office to inquire about the validity of the Police Department's actions. If he refused to provide the answer in writing, demand to speak to HIS supervisor. Keep working your way up the food chain until you get satisfaction. Advise the person on the other end of the phone that you are keeping careful records of conversations and ask for names and badge numbers. Don't get emotional or upset on the phone or in person (at least don't SHOW it.) Asking for names and badge numbers tells them "oh shit, this is going to go somewhere..." A This simply sounds to me like a case of "Big City PD Lazyness." They don't want anything to do with this as it may involve actually having to get off their fat, donut-laden asses and having to do something. I have had to deal with the City of Philadelphia Police Department several times, including once for a towing company which illegally towed my car. Believe me, when they ask "Why do you want my badge number", they HATE to hear the words "Because I am going to run you, your Sergent, and your Lieutenant's names all into the Commissioner's Office with accusations of fail to perform, even though I laid all of the evidence across your desks in black and white." Also I might suggest contacting the Police Chief's Office directly. Better yet, write an un-emotional letter to the Police Chief. Include detailed descriptions of all actions up to now. Include dates and times of telephone calls, including names if you have them. Also include a list of the serial numbers, and the factory build sheets. Facts only. No emotions. Now is not the time to get upset. Detail what you were told and by whom, if you have their names. Circulate copies of the letter to the Mayors Office as well as the District Attorney. SEND ALL OF THESE BY REGISTERED MAIL, RETURN RECEIPT REQUESTED. Make sure you include at the bottom of the letter "CC: Mayor Joseph Blow, District Attorney John Q. Public. This will certainly catch the eye of the Police Chief. Hopefully, it goes without saying that you are keeping a detailed paper trail. Keep careful records of all phone calls: Who, what, when. Get all your notes and put them in a manilla folder. Keep it with you at all times, that way if you get a call on your cell phone, you can pull over and record the time and the topic of the discussion. **disclaimer: I dont think this way about ALL cops, just the "holier than thou" and LAZY ones.**