Expert Witness Services & Criminal Case Reviews Tailored to Your Needs.

With 16 years of law enforcement experience, we offer consulting, case review, and expert witness services you can trust.

Our Core Services

Criminal Case Review

Providing detailed analysis of criminal cases with insights from 200+ homicide investigations.

Expert Witness Services

Expert witness services that bring real-world law enforcement experience to the courtroom.

Homicide Consulting

Consulting services on homicide investigations backed by years of investigative experience.

CEO's Message

Mr. Jack Ferrell

With 16 years in law enforcement, I founded Integritas Service Group to offer trusted, discreet, and effective private investigation services. In a world where the truth is often hard to uncover, our goal is to provide clarity and confidence to our clients. Every case we take on is approached with the utmost respect, confidentiality, and commitment to professional integrity.

At Integritas, our mission goes beyond simply finding answers. We work to empower you with reliable information, ensuring that you can make critical, informed decisions. Whether you need criminal case review, expert witness support, or law enforcement consulting, we’re here to deliver thorough, dependable results you can trust.

A Message from Jack Ferrell

With 16 years in law enforcement, I founded Integritas Service Group to offer trusted, discreet, and effective private investigation services. In a world where the truth is often hard to uncover, our goal is to provide clarity and confidence to our clients. Every case we take on is approached with the utmost respect, confidentiality, and commitment to professional integrity.

At Integritas, our mission goes beyond simply finding answers. We work to empower you with reliable information, ensuring that you can make critical, informed decisions. Whether you need criminal case review, expert witness support, or law enforcement consulting, we’re here to deliver thorough, dependable results you can trust.

Memberships & Associations

Why Choose Us?

16 Years of Experience

Expertise in law enforcement, managing over 200 homicide cases

Certified & Award-Winning

TCOLE Instructor, ALERT Instructor, and Investigator of the Year (2021).

Professionalism & Discretion

We uphold the highest standards in consulting and privacy.

Success Stories: Insights from Our Solved Cases

Why Case Reviews Are Vital for Criminal Defense

Explore the importance of thorough case reviews in criminal defense, highlighting how they uncover critical evidence, identify weaknesses, and enhance strategies to ensure fair trials for defendants....

Professional Liability Insurance Protects Criminal Case Consultants and Investigators

Learn how professional liability insurance safeguards criminal case consultants and investigators from potential legal claims, ensuring they can perform their duties without fear of financial repercussions or reputational damage....

Witness Protection: Securing Testimony in a High-Profile Criminal Case

Delve into the mechanisms of witness protection programs, emphasizing their role in safeguarding key witnesses in high-profile criminal cases, thus ensuring that critical testimonies are preserved for justice....

Looking for a Private Investigator?

Integritas Service Group, LLC has conducted thousands of investigations, established hundreds of sources and partnerships, and has been at the forefront of private investigations for nearly 16 years.