You could also just walk into any livescan fingerprinting location (Bithgroup, American Identity Solutions, etc.) pay the fee, and tell them you want to run a CJIS check on yourself and get the results.Start here https://www.baltimorecountymd.gov/departments/liquorboard/backgroundcheck.html
For FBI record you will have to request to be fingerprinted at the same location, but it will be done on the card and you have to mail it with attached fee in money order form. Your state record will arrive within 30 day, fbi will take 90 days.