CA. P.I. Lic. #20963   TX. P.I. Lic. #A03046701
TX. P.I. Lic. #00315798

  Advanced Private Investigations offers investigative and surveillance services for cases including, but not limited to; 

We offer a comprehensive range of private investigation services, surveillance services and surveillance equipment to fit our client’s needs. Whether the investigation is related to business or domestic issues, marital infidelity, spousal surveillance, civil or criminal investigations, employee investigations, insurance fraud or child custody issues, our Private Investigators get the job done discreetly, professionally and affordably!  

We employ and utilize both male and female investigators and conduct services in most states and major cities throughout the United States. 

Our Private Investigators document details of our investigations with the assumption that the evidence may be used in a legal proceeding. 

We are very experienced with counter-surveillance investigations, GPS Vehicle Tracking, Covert Hidden Cameras, Nanny Cameras, Spy Surveillance Products, personal protective surveillance, and video surveillance assessment and investigation service management. 

At Advanced Private Investigations, we are continually updating our skills and surveillance technology to provide our clients with discreet surveillance and private investigation services in California, Texas, and nationwide. 

Video surveillance has proven to be one of the best techniques used by investigators to determine or to investigate a subject’s activity, location, movements, habits, lifestyle and personal contacts. Our licensed Private Investigators will gather video surveillance evidence and obtain covert video surveillance documentation using high-tech video surveillance cameras, body-worn hidden cameras, night vision capable zoom surveillance cameras, GPS vehicle trackers, real-time GPS vehicle tracking devices, and sophisticated surveillance techniques. At Advanced Private Investigations we are DISCREET, PROFESSIONAL and AFFORDABLE. Call us for details on our surveillance and Private Investigation services. (877) 259-2470 

  • Accident Investigations
  • Asset Locates/Investigations
  • Attorney/Litigation Support
  • Arson/Fire Investigations
  • Background Investigations
  • Bail Enforcement/Fugitive Recovery
  • Bug Detection/TSCM Sweeps
  • Child Support/Custody Investigations
  • Civil Investigations
  • Collections/Recovery
  • Certified Forensic Interviews
  • Corporate Investigations
  • Computer/Phone/Tablet Forensics
  • Domestic Investigation
  • Death/Homicide Investigations
  • Divorce/Spousal Support 
  • Executive Protection

  • Certified Fraud Investigations
  • Forensic/DNA Testing Services
  • GPS Tracking/Rentals/Sales
  • Identity Theft/Fraud
  • Insurance Fraud
  • Internal/External Theft
  • Internet Fraud
  • Interviews/Interrogations
  • Healthcare/Medical Fraud
  • Loss Prevention Services/Investigations
  • Marital/Infidelity Investigations
  • Missing Persons
  • Mystery Shopping Services
  • Skip Tracing
  • Stalking Investigations
  • Surveillance 
  • Undercover Operations
Home | Services | Request Services | GPS | About US

DAVID STRAIT, CFE., CFI. Owner of Advanced Private Investigations, Owner and Director of Investigations, is a former Law Enforcement Officer, Investigations Director, and served in the U.S. Army prior to launching Advanced Private Investigations in 1998. He is a Certified Fraud Examiner, and Certified Forensic Interviewer, and is licensed as a Private Investigator in California and Texas. Mr. Strait and his team are well qualified to successfully conduct a wide-range of investigations. 
ROB BROWNLEE, manager and senior investigator, is a former civilian criminal investigator and forensic criminologist, with over a decade in investigations, protection, and fugitive recovery experience.
Three reasons to feel secure and confident in the Advanced Private Investigations team: 1. We have a highly-trained team of investigators. 2. We use state-of-the-art surveillance technology and investigative techniques. 3. We're FAST, DISCREET, PROFESSIONAL and AFFORDABLE! Advanced Private Investigations has two office locations - one in California and one in Texas. We proudly serve clients across the United States. We have a dependable staff, ready to take your case. Put our experts to work for you! No case is too big or too small, give API a call. We offer a FREE phone consultation, so why wait? CALL NOW! (877) 259-2470. You'll enjoy a comprehensive range of services from the team of private investigators at API. Whether your investigative needs are regarding business, domestic, or legal issues, our team can provide the services you need. We will help you get the job done!