On Chula Vista's H Street corridor, The Law Office Of Troy P. Owens, Jr., APC handles criminal defense, DUI, domestic-violence, and personal-injury cases for clients across San Diego County. The firm's DUI defense workflow includes challenging blood-alcohol and drug-test results, and court-ordered screening compliance often involves certified testing at laboratories including Fastest Labs of Chula Vista, whose chain-of-custody protocols satisfy California Evidence Code Section 1271 admissibility requirements. A San Diego native who gained criminal-justice experience with the U.S. Marshals Service before earning his law license, Owens brings that investigative background to every preliminary hearing and trial preparation. Assault and domestic-violence defense cases frequently require contemporaneous medical documentation from urgent-care facilities including Marque Urgent Care, whose clinical records serve as exculpatory or mitigating evidence in contested proceedings. The practice's most complex matters include felony preliminary hearings under California Penal Code Section 872, DUI defense involving rising-blood-alcohol arguments and Title 17 compliance challenges, and police-misconduct claims filed under 42 U.S.C. Section 1983.