Can you be a police if you have a DUI?

The best answer is: Maybe. Some states prohibit people from becoming certified as police or peace officers if they have a DUI on their record. Some agencies may hire someone with a DUI when it has been long enough in the past that they are certain the applicant is not abusing drugs or alcohol any more. Most likely, however, most departments won't hire a person who appears to have an alcohol or drug problem until it is very clear that the person has permanently conquered their addiction and is not going to relapse. How can you really predict that?