
Welcome to
The Special
Investigations Unit
Precision Investigations. Clear Results!
MEET
Lawrence J. Hamilton
With years of experience in the field, The SIU stands out for our commitment to excellence in private investigation. Our knowledgeable professionals combine educational backgrounds with practical skills to tackle a wide range of investigative challenges. We understand that confidentiality and precision are paramount, and our services reflect our dedication to uncovering the facts while maintaining your trust. Reach out today to discover how we can assist you.
Our Services

"Met with Larry he was very informative very knowledgeable. He has a lot of experience in the field with not just private investigation but working with the FBI he knows all the Can't wait to work with him. Great job Larry. I highly recommend you."
Karl G.
8/22/25 - Yelp
"(LJ) Larry is one of the most professional and qualified private investigators that I have ever met. When I need to do background checks and inquiries I can always trust Larry to get results. I look forward to using Larry and connecting other friends who will benefit from his services. If you need to get answers, look no further."
Rex Garver
2/26/25 - Yelp, Google
"Lawrence Hamilton is one of the best investigators out there. Quick to respond, clear reports, and extremely thorough. Got my case done faster than I thought. I would recommend him to anyone and everyone."
Molly Glaab
6/9/23 - Google
"L J Hamilton and his team successfully served a TRO on someone who had continually evaded service for weeks and months! I am forever grateful. This was no easy task. I found them to be very professional and I would highly recommend them to anyone!! Thanks so much!!"
Martha M.
7/11/21 - Yelp
"Larry Hamilton and The Special Investigations Unit are fabulous. My attorney could not serve my ex-wife in San Diego because she had moved and left no forwarding address. It turns out that she was living on a boat. Larry found her quickly and served the papers. Larry was very professional and kept me apprised of his progress on a daily basis. His prices are very reasonable. There is no reason to use anyone else."
James W.
3/4/21 - Yelp
"I had Larry do a background check on a woman who wanted me to send her money so she could get back to the USA. She provided a photo of her expired USA passport. The passport looked legitimate but when Larry ran a background check he found that there was no such passport # or person. Larry saved me time and money."
Michael G.
9/2/20 - Yelp
"I have used Special Investigations for a personal case for family court. Their professionalism and attention to detail is second to none. They helped me set strategy and when to proceed with what action. I would recommend them to anyone."
Ken C.
9/1/20 - Yelp
“The Special Investigations Unit has assisted us in hard locates and complex litigation cases. Their expertise has assisted us in prevailing in our litigation.”
Norm Pokorny, Esq.
7/29/20 - Yelp
"We have used The Special Investigations Unit (SIU) numerous times for both personal as well as professional incidents. Each and every time, our cases were handled quickly and professionally. We received excellent information/evidence, which enabled us to win our court cases each and every time. The SIU is my "go-to" private investigator for all of our personal/business needs. The SIU has my highest recommendations."
Bunny R.
7/29/20 - Yelp
"Fast and effective results for my client. Will use again in the future. Lawrence is very responsive to emails and gets the job done under a very short time window. The reports he provides are clear and concise."
Heidi Bell
8/2/17 - Google
“The Special Investigation Unit tracked down a delinquent renter for our company, and we were able to recoup over $5,200 in back rent and other damages."
Lisa Longway
Website
"The Special Investigation Unit has assisted us in a number of high profile investigations, and recovery of assets in fraud cases and workers’ compensation cases."
Alysha Green
Website
“We were able to recover $30,000 in recoverable costs due to your tremendous efforts in locating assets of the subject.”
Tom Musick
Website










