We Offer Our Services in Austin, Round Rock, Georgetown, Leander, Cedar Park, Hutto, Taylor, Bee Cave and Surrounding Areas.

Some of the services we have to offer are:  Asset Searches, Court Research Background, Divorce, Cheating Spouse Investigation, and more.


We offer free consultation before committing to any services we have to offer.  We stand by our services and so do others.

Austin Private Investigator / Expert Witness, A.J. Keirn, Offers Trusted, Discreet PI Services

A.J. Keirn has spent the last 20 years in the law enforcement community. After serving the Houston Police Department and the Leander Police Department, he put his experience and extensive skill-set to work as a Private Investigator and Expert Witness.

“I recently consulted with Allen Keirn, owner of A.J. Keirn Investigations, on a complex felony criminal case. Mr. Keirn was responsive, insightful and resourceful. He located information on potential expert witnesses and provided research materials relevant to the case within hours of our meeting. I also used Mr. Keirn’s services to serve an out of county subpoena. He had proper service within 48 hours. His rates are reasonable and he is easy to reach 24 hours a day.” ~ The Law Office of Robert M. McCabe, PLLC

When you need a versatile, skilled, and discreet private investigator who gets results call (512) 763-0670.

Private Investigation and Surveillance Services