# Sean P. Quinlan, Esq. — Pennsylvania DUI & Criminal Defense > Central Pennsylvania law firm based in Camp Hill, PA. Nearly 30 years defending DUI, criminal, and traffic cases. Free consultations: (717) 724-7503. ## Pages - [Home](/): Overview of the firm, services, and contact info. - [About](/about): Attorney Sean P. Quinlan's background and experience. - [Contact](/contact): Phone, address, and free-consultation scheduling. - [DUI Defense](/dui): Pennsylvania DUI defense across all BAC tiers, refusals, and ARD. - [Criminal Defense](/criminal-defense): Misdemeanor and felony defense — drugs, assault, theft, weapons, PFA. - [Traffic Citations](/traffic): Traffic and CDL citation defense. - [Act 58 / ARD](/ard-act-58): How Pennsylvania's 2025 Act 58 changes prior-ARD treatment. - [Insights](/insights): Articles on Pennsylvania DUI, criminal, and traffic law. ## Locations - [DUI Lawyer — Harrisburg](/dui-lawyer/harrisburg) - [DUI Lawyer — Camp Hill](/dui-lawyer/camp-hill) - [DUI Lawyer — Mechanicsburg](/dui-lawyer/mechanicsburg) - [DUI Lawyer — Carlisle](/dui-lawyer/carlisle) - [DUI Lawyer — Hershey](/dui-lawyer/hershey) - [DUI Lawyer — York](/dui-lawyer/york) - [DUI Lawyer — Cumberland County](/dui-lawyer/cumberland-county) - [DUI Lawyer — Dauphin County](/dui-lawyer/dauphin-county)