Hello, Oepazmino
Check the website for your city or state's police force and see if they list the qualifications and health requirements for applying to be a member of the service. You won't find specifics such as j pouch listed, but it should give you an idea of health, height, physical, sight, etc., requirements. A j pouch shouldn't keep you from doing anything you want if you manage to form a schedule of when to eat, your transit time, and emptying. Just like people with their colon. Good luck to you!