Desert
Bloodhound
Expert Private Investigation & Security Services
Our Services
We offer a comprehensive range of private investigation and security services, including:
Background Investigations
Skip Tracing & Locate Services
Infidelity & Surveillance
Child Custody Investigations
Missing Persons & Cold Case Reviews
Criminal & Civil Case Analysis
Police Policy Expert Witness Testimony
Security Risk Assessments & Consultation
Whether you’re an individual, law firm, or business,
Desert Bloodhound delivers professional investigative solutions tailored to your needs.
Our Team

Glenn Walp, Ph. D.
Chief Executive Officer & Lead Expert Witness
Dr. Glenn Walp brings more than four decades of distinguished law enforcement experience, including service with the Pennsylvania State Police, where he retired with the rank of Colonel. He has also served as Chief of Police for three municipal departments, Chief Criminal Investigator, and a Security Specialist at Los Alamos National Laboratory. A recognized expert in police policy and procedure since 2002, Dr. Walp has provided professional testimony for both plaintiffs and defendants in court. He is also a licensed Private Investigator in the State of Arizona (since 2013) and is renowned for his detailed analysis, clear presentations, and compelling expert witness testimony. References are available upon request.

Lisa Bradford
Senior Investigator
Lisa Brandford is a highly accomplished investigator with a strong reputation for achieving results. She specializes in sensitive domestic cases, including:
- Child and elder abuse investigations
- Infidelity and marital disputes
- Child custody evaluations
- Estate and real property disputes
Her compassionate yet thorough approach ensures that clients receive clear answers and dependable documentation.
ABOUT US
Desert Bloodhound is a premier private investigation and security consulting firm based in the East Valley. With over 70 years of combined experience in law enforcement and investigative services, our team delivers accurate, discreet, and effective results across a wide range of civil, criminal, and domestic matters.

Why Choose Us
70+
Over 70 years of combined law enforcement
and investigative experience
100%
Confidential, accurate,
and timely results

Competitive, reasonable rates

Professional, court-ready reports
and expert testimony

Personalized service from
seasoned professionals
Contact Us
Have questions or need discreet assistance? Our team is ready to help. Reach out today for a confidential consultation