Gather the person’s full legal name
Get their date of birth if possible
Identify the state or federal system where they may be held
Search the relevant state Department of Corrections inmate locator
Search the Federal Bureau of Prisons inmate locator if they may be in federal custody
Check county jail inmate search tools for recent arrests
Contact the county sheriff’s office if no online search is available
Use the person’s booking number or inmate number if you have it
Search by aliases or maiden names if applicable
Check court records for the jurisdiction where they were charged
Look up recent arrest records and detention records
Contact the prison or jail directly with identifying details
Use the state’s offender search or inmate lookup hotline if available
Search neighboring counties and states if location is unknown
Check parole or probation records if they may have been released
Contact the public information office of the correctional facility
Ask the facility about visitation eligibility or mailing procedures
Use a reputable inmate locator service only if it is official or verified
Verify the result by matching multiple identifiers before contacting them