I hate to tell you the bad news but I really don't think an agency would hire you. With your history and the fact you probably won't pass the psychological part. It would be too much of a risk.
Don't go out and confront them. You can call the Police Department and they will send an officer out. When you call don't use 911, call the local number for the PD.
When you first get there, just ask the officer if there is any specific instructions that you need to follow. Ask good and appropriate questions, nothing too personal. Wear khaki pants and a polo shirt.
We have said many times that we don't help with homework on here. Why don't you go down to your local PD and they will be more than happy to help you. I'm sure your teacher wants you to have a face to face interview, not over the internet.
The best finish I have seen. It was the closest finish in Indianapolis Motor Speedway history, Peter Dempsey beat Gabby Chaves to the finish line by .0026 seconds. Wow, what a great race! Anybody else see it?
Have your hands on the steering wheel and when the officer ask you for your license just say "ok but I also would like to tell you I have a unloaded firearm in the glove box"