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Criminal Defense Investigation Services
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At ASG, we provide targeted criminal defense investigative services for both criminal defense attorneys and members of the general public. Our work supports ongoing criminal cases, post-conviction matters, and appeals, delivering independent, detail-driven investigations when accuracy matters most.
Whether you are an attorney developing a defense strategy or an individual seeking investigative support, our experienced private investigators are prepared to assist at any stage of a criminal matter. All consultations are free, confidential, and obligation-free.
A thorough, independent investigation can uncover overlooked evidence, expose inconsistencies, and identify key witnesses—often making the difference in establishing reasonable doubt.
Why Criminal Defense Attorneys Hire Private Investigators
Criminal defense attorneys rely on strong teams, but complex cases often demand additional time, focus, and investigative resources.
Private investigators bring a critical advantage: dedicated attention to the details. While attorneys concentrate on legal strategy and courtroom advocacy, investigators focus on reviewing, verifying, and analyzing the evidence that forms the foundation of the case.
At ASG, our role is to provide defense counsel with accurate, actionable intelligence that supports strategic decisions and strengthens the defense throughout the legal process.


Our Criminal Defense Investigation Services
ASG investigators conduct comprehensive, trial-ready investigations, which may include:
- Verified Locate Investigations & Database Research
- Background Checks & Public Records Investigations
- Field Photography & Scene Documentation
- Internet Profiling & Social Media Investigations
- Juror Intelligence Research
- Professional Process Service (MI)
- Telephone Statements & Witness Interviews
- Assistance obtaining case-related files (FOIA requests)
- Identifying and locating new witnesses
- Speaking with individuals prior to testimony
Every investigation is meticulously documented and delivered in a format that is easily integrated into your defense strategy.
ASG investigators are frequently retained to handle specific, client-requested tasks. Whether you need a witness located, a statement obtained, records retrieved, or a particular issue verified, we provide focused investigative support tailored to your exact needs.
If you’re seeking a competitive edge, partner with the expert investigators at ASG.
The Value of Private Investigators in Criminal Defense
Private investigators add unique value to criminal defense matters by combining an understanding of legal standards and investigative procedure. We independently evaluate law enforcement work, identify inconsistencies or errors, and ensure that no relevant facts are overlooked.
The most effective defense strategies result from collaboration. ASG investigators provide attorneys with additional perspective, subject-matter expertise, and critical insight—especially in complex or highly technical cases. Better information leads to stronger decisions and improved outcomes.


Why Choose ASG?
ASG’s criminal defense investigators are board-certified, professionally accredited, and highly experienced in handling sensitive criminal matters. We are committed to investigations that are:
- Ethical and legally compliant
- Objective and impartial
- Thorough and detail-driven
- Completed with quick turnaround times
Our goal is to complete the bigger picture, mitigate exposure, and strengthen your defense whether preparing for trial or pursuing an appeal.
Contact ASG Today – (586) 221-4662
Whether you are an attorney seeking investigative support or an individual facing a criminal matter, ASG is here to help.
Contact us today to discuss your situation and learn how our investigative services can support your defense strategy.
Your call is free, confidential, and without obligation.









