Should I tell the police department about my expunged misdemeanor?

I am applying for a job as a police officer. I have a Class B misdemeanor for ¼ ounce of marijuana in Texas, about a country or 2 away from the Town here I am applying for the job. It has been expunged from my record, and I do not legally have to disclose it for any reason. It know for a fact it doesn’t show up on the normal background checks that normal employers do. Should I be honest with the PD? Maybe leave it off of the application, but tell the oral review board or recruitment officer? I want to be honest, but I don’t want to risk getting points taken off that I didn’t need to take off.