About The Jacobs Group
About Us
The Jacobs Group
With over 30 years of experience as a Homicide Commander, Lt. Tommy Jacobs Sr. brings a level of investigative expertise that surpasses that of many law enforcement agencies. Now leading The Jacobs Group, he offers defense attorneys a powerful ally in the pursuit of truth and justice.
Our Specialties Include:
Criminal Defense Investigations
Death Row Appeals
Wrongful Death Cases
Wrongful Death Cases
The Jacobs Group provides comprehensive investigative support for legal defense teams, with deep insight into law enforcement procedures and potential investigative flaws. Lt. Jacobs understands firsthand that police investigations can be incomplete, biased, or simply wrong—and that every defendant deserves a second look.
Whether uncovering new evidence, identifying alternate theories, or exposing inconsistencies in the prosecution’s case, The Jacobs Group is committed to delivering meticulous, unbiased investigations. Let us help you build a stronger defense through fact-based, expert-level case analysis.
Criminal Investigations
Lt. Tommy Jacobs
Specialties Include:
Criminal Defense Investigations
Death Row Appeals
Wrongful Death Cases
Lt. Tommy Jacobs brings a level of criminal investigative expertise rarely matched in law enforcement. With over 30 years of experience-including as Commander of the Homicide Division for the Metropolitan Nashville Police Department-Lt. Jacobs has led and reviewed some of Tennessee’s most complex and high-profile cases, including the nationally known Marcia Trimble homicide investigation.
At The Jacobs Group, we support defense attorneys with investigative insight grounded in decades of major case experience. Our team provides a critical second look into law enforcement investigations-identifying procedural errors, evidentiary gaps, and overlooked leads.
Lt. Jacobs understands that initial investigations can be incomplete, biased, or flawed. He applies the same rigorous standards he demanded during his career in homicide to help attorneys challenge questionable police work and build stronger defenses.
From wrongful convictions to capital cases, we work to uncover the facts that matter-so that justice prevails.
Investigative Expertise
Chief Mickey Miller (Ret.)
Chief Mickey Miller (Ret.) brings over four decades of distinguished law enforcement experience, including his tenure as Chief of Police for the Hendersonville Police Department in Tennessee. A seasoned investigator and public safety executive, Chief Miller has led some of the region’s most complex and high-profile investigations with integrity and precision. Chief Miller’s investigative experience covers a broad range of criminal cases, including violent crimes, public corruption, internal affairs, and multi-agency operations. As Chief, he implemented investigative procedures that improved case resolution standards and strengthened agency accountability.
Specialties Include:
Complex Criminal Investigations
Public Integrity & Internal Investigations
Trial Preparation & Expert Consultation
Chief Miller offers an invaluable perspective to defense attorneys and clients-combining deep operational knowledge with an insider’s understanding of how investigations unfold, where errors occur, and how to spot weak points in a prosecution’s case.
His mission remains the same in retirement as it was in uniform: to uncover the full truth and ensure investigative work meets the highest standards of accuracy and fairness.
Digital Forensics & Technical Surveillance
Zach Jacobs
Zach Jacobs represents the next generation of investigative excellence at The Jacobs Group. As the grandson of Lt. Tommy Jacobs, Zach carries forward a family legacy of integrity and precision-applying modern digital forensic and counter-surveillance techniques to uncover the truth in today’s most complex investigative environments. Zach is Cellebrite CCO and CCPA certified, FotoForensics Lab certified, and professionally trained in Technical Surveillance Countermeasures (TSCM), including RF spectrum analysis and covert device detection. He has conducted extractions and forensic imaging on mobile devices and computers, helping clients recover deleted data, authenticate digital evidence, and detect surveillance threats.
Specialties Include:
Digital Forensics (Mobile & Computer Imaging)
Technical Surveillance Countermeasures (Bug Sweeps)
AI Image & Metadata Analysis (Deepfake Detection)
Insurance & Corporate Fraud Investigations
Social Media & Messaging App Evidence Collection
Zach’s work combines cutting-edge tools with a deep understanding of investigative processes. Whether identifying spyware in a corporate setting, verifying the legitimacy of digital media, or supporting internal investigations, he delivers thorough, accurate, and confidential results.
As digital threats continue to evolve, Zach Jacobs ensures clients stay one step ahead-with evidence that holds up under scrutiny.