About

Allison Vinson has been a licensed private investigator in Texas since 1998 and founded Liberty Investigations, Inc. in 2002. The firm is based in the Houston area and holds license A11211 from the Texas Department of Public Safety Private Security Program. She leads a team of investigators who each bring specific expertise to a case.

Liberty works at the direction of counsel on pretrial and post-conviction criminal cases, with a concentration in habeas corpus proceedings and capital litigation. Its investigators locate and interview witnesses, take affidavits and declarations, collect records, and file public information requests. They also handle background and open source research, video and evidence preservation, scene investigation, surveillance, and the collection of DNA and other physical evidence.

The firm also takes civil rights cases involving constitutional claims, along with civil and family law matters on a selective basis. Its clients include attorneys and law firms, federal defender offices, innocence and civil rights organizations, and individuals, families and businesses.