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Connecticut Investigative Services Connecticut Investigative Services
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31 Years
experience
Emergency
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Open 24/7
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Professional Private Investigators in Shelton, CT
Connecticut Investigative Services has built a reputation as a premier investigative agency since 1995, combining decades of law enforcement experience with private sector expertise. Our team of licensed, bonded, and highly trained investigators includes former police detectives with specialized skills in criminal, civil, and corporate investigations. We utilize cutting-edge technology and proven methodologies to deliver accurate, timely results for attorneys, businesses, and private clients. With an A+ BBB rating and recognition as one of Connecticut's top investigative agencies by the Connecticut Law Tribune, we prioritize client confidentiality, ethical practices, and thorough investigative work.

Our 30-year track record demonstrates our commitment to resolving complex cases through meticulous research, surveillance, and evidence collection. We maintain strong professional relationships within law enforcement and legal communities while offering nationwide investigative capabilities. Our client-centric approach ensures transparent communication, cost-effective solutions, and personalized attention to every case. This combination of experience, credentials, and dedication to excellence has made us a trusted partner for legal professionals and businesses seeking reliable investigative services.
Services
Surveillance Investigations Background Checks Civil Investigations Criminal Investigations Insurance Fraud Investigations Corporate Investigations Document Retrieval Undercover Operations Witness Interviews Asset Locating
Details
  • Year established: 1995
Highlights and features
  • 30 years of investigative experience with former police detectives
  • Maintain A+ BBB rating since 2019
  • Licensed and bonded Connecticut investigators with law enforcement backgrounds
  • Utilize advanced surveillance technology and proven methodologies
  • Recognized as top investigative agency by Connecticut Law Tribune
Associations and certifications
  • Better Business Bureau (BBB)
What people say
Lightning fast response Highly recommend services Exceptional investigative skills Professional and thorough Invaluable legal support
Website
Services
Surveillance Investigations
Our investigators utilize advanced GPS tracking and hidden camera systems to conduct discreet surveillance operations. This service helps document suspicious activities for insurance fraud cases, custody disputes, and corporate investigations. With specialized vehicles and experienced personnel, we provide documented evidence that holds up in court proceedings while maintaining complete operational confidentiality.
Background Checks
We conduct comprehensive background investigations using official state and federal records rather than basic database checks. Our process includes criminal history verification through Connecticut State Police, motor vehicle records, and professional credential validation. This service helps businesses make informed hiring decisions while ensuring compliance with legal requirements for sensitive positions.
Civil Investigations
Our experienced investigators support civil litigation by locating witnesses, verifying assets, and collecting critical evidence. We specialize in personal injury cases, family law matters, and commercial disputes. Our detailed documentation and courtroom-tested testimony help attorneys build stronger cases while adhering to strict legal standards for evidence admissibility.
Criminal Investigations
We assist defense attorneys by conducting independent investigations, interviewing witnesses, and challenging prosecution evidence. Our former police detective experience provides unique insights into case strategies. We help identify inconsistencies in charges, locate exculpatory evidence, and prepare thorough case documentation to support effective criminal defense strategies.
Insurance Fraud Investigations
Our specialized team investigates suspicious insurance claims through activity checks, public records analysis, and surveillance operations. We help insurers identify fraudulent personal injury claims, workers' compensation abuses, and property damage misrepresentations. Our detailed reports and courtroom-ready evidence presentation help reduce financial losses while maintaining legal compliance.
People
Mark J. MacDaniel
Founder & Owner
With over 30 years of investigative experience, Mark J. MacDaniel leads Connecticut Investigative Services as founder and owner. A former police detective, he combines law enforcement expertise with private sector knowledge to oversee complex investigations. His leadership ensures the agency maintains its A+ BBB rating while delivering exceptional client service.
Questions
What sets Connecticut Investigative Services apart from other agencies?
Our investigators have law enforcement backgrounds with specialized training in criminal justice and courtroom procedures. We maintain an A+ BBB rating and have been recognized by the Connecticut Law Tribune for investigative excellence.
Do you offer services outside Connecticut?
While based in Connecticut, we have nationwide investigative capabilities through professional networks and maintain the same high standards for out-of-state cases.
How quickly can you start an investigation?
We typically begin investigations within 24 hours of initial consultation. Our team provides prompt responses while maintaining thorough, methodical investigative processes.
Are your investigators licensed and insured?
All investigators are licensed and bonded in Connecticut with required professional liability insurance. We maintain full compliance with state regulatory requirements.
Can you assist with both civil and criminal cases?
Yes, we provide investigative services for all case types including civil litigation support, criminal defense assistance, and corporate investigations with court-admissible evidence collection.
How do you ensure client confidentiality?
We maintain strict confidentiality protocols through secure communication channels and limited case team access. Our professional conduct follows legal and ethical standards for sensitive investigations.
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Reviews (10)
John Tatoian Enterprises John A. Tatoian Jd Esq
Jun 26, 2021 Report
Lighting fast response, dead on accuracy, very pleasant & professional service. It's what all companies should strive to become.
Rachael Giannetti
Apr 29, 2021 Report
To say that Mark is fantastic is an understatement! He was quick to respond, knowledgeable and one of the kindest people I have encountered. Mark has renewed my faith in humanity. Thank you Mark!
Refai Arefin
Mar 28, 2021 Report
I am so impressed by how quick and thorough CIS was in getting back to me with the report we needed. I have a civil litigation practice. Highly recommended!
Jarrad Byron
Mar 15, 2021 Report
Great services to go through! Thank you Detective Mark McDaniel! I would recommend them to anyone in the CT area.
Lawrence Seavy-Cioffi
Nov 23, 2020 Report
We were at a stand still until Detective Mark McDaniel with CT investigative services located our tort-feasor sought. Now our case can proceed. His service is invaluable for that attorney seeking parties when building his case. Thank you Det. McDaniel!
Matthew E. Willis
Apr 19, 2018 Report
I stumbled upon Mark and Connecticut Investigative Services after our law firm's prior private investigator retired. Mark was very easy to get a hold of and took my call promptly. I advised him of our client's budget and he was very sensitive to our cost concerns. Mark was able to work within my timeline and achieved the desired results promptly and thoroughly. He was pleasant and professional and I look forward to working with him and his team on our next assignment. I am grateful for finding him and would recommend him and his agency without hesitation.
Matthew Willis
Oct 28, 2017 Report
Fantastic! I stumbled upon Mark and Connecticut Investigative Services after our law firm's prior private investigator retired. Mark was very easy to get a hold of and took my call promptly. I advised him of our client's budget and he was very sensitive to our cost concerns. Mark was able to work within my timeline and achieved the desired results promptly and thoroughly. He was pleasant and professional and I look forward to working with him and his team on our next assignment. I am grateful for finding him and would recommend him and his agency without hesitation. -Matthew E. Willis, Esq.
Ralph Bednarczyk
Feb 24, 2017 Report
Outstanding. I spoke to Mark and it was clear he's been through every kind of investigation, even when in my case it's felt like such a dead end. If you feel trapped or don't have a way or someone to turn to, you will feel completely differently after having a good conversation with him and his staff. Don't hesitate, make the phone call, I think you'll be surprised how much of a nudge it can give you towards solving your situation, I feel so much better about my chances and all it took was maybe 10 minutes. Make the call
Brian M. Ricci
May 02, 2016 Report
My law firm hired CIS. They got us the info. we needed fast and efficiently. I would recommend their services to anyone needing an investigator.
Jeremy Mallin
Dec 01, 2015 Report
The investigator was absolutely fantastic! I cannot speak highly enough about him. He found an old traffic ticket that no one else could find within hours! Great company!