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Licensed Private Investigators in Long Island, NY
Root Investigations is a licensed, bonded, and insured private investigation agency serving New York City and Long Island. With over a decade of experience, our team comprises former law enforcement professionals, including FBI, CIA, and NYPD veterans, alongside seasoned investigators. We specialize in surveillance, infidelity investigations, child custody cases, background checks, fraud detection, and insurance fraud investigations.

Our mission is to provide factual evidence with discretion, adhering to strict ethical standards. We prioritize client confidentiality and offer 24/7 access to our lead investigator. Our diverse team blends into any scenario, ensuring covert operations while delivering court-admissible evidence. Recognized for excellence, we maintain a five-star rating and serve Nassau, Suffolk, Westchester Counties, and NYC's five boroughs.
Services
Surveillance Infidelity Investigations Child Custody Background Checks Fraud Investigations Insurance Fraud Corporate Investigations Social Media Checks Asset Tracing Worker's Comp Fraud
Highlights and features
  • We offer 24/7 personalized investigator access for urgent cases
  • Our team includes former FBI, CIA, and NYPD professionals
  • We guarantee legally compliant, court-admissible evidence collection
  • We maintain strict client confidentiality protocols for sensitive cases
  • We provide customized investigation plans tailored to each client's needs
What people say
Thorough investigations Discreet operations Excellent results Professional team Timely communication
Services
Surveillance
Our trained investigators conduct physical and electronic surveillance using advanced technology. This service helps document suspicious activities for legal proceedings while maintaining complete discretion. Clients receive detailed reports and video evidence suitable for court presentation.
Infidelity Investigations
We provide discreet infidelity investigations through strategic surveillance and digital monitoring. Our team documents evidence of marital misconduct while adhering to legal boundaries. Services include activity documentation and court-ready evidence preparation for divorce proceedings.
Child Custody
Our investigators gather evidence for child custody disputes through background checks, lifestyle assessments, and behavioral documentation. We focus on child welfare factors including living conditions, parental behavior, and potential safety risks to support court decisions.
Background Checks
We conduct comprehensive background investigations covering criminal records, employment history, and financial status. Our checks include social media analysis and document verification for employment, tenant screening, and personal safety purposes.
Fraud Investigations
Our team detects various fraud types including insurance fraud, embezzlement, and worker's compensation fraud. We combine digital forensics with physical investigations to uncover financial misconduct and provide evidence for legal action.
People
Liz Brock
Owner/Lead Investigator
Liz Brock is a licensed private investigator with over a decade of experience in conducting complex investigations. She leads Root Investigations' team of professionals while maintaining direct client communication throughout each case.
Questions
What types of cases does Root Investigations handle?
We handle infidelity investigations, child custody cases, surveillance operations, background checks, fraud detection, and insurance fraud investigations for both individuals and businesses.
Are your investigators licensed and insured?
Yes, we are a fully licensed New York private investigation agency with license #11000210387, and maintain proper bonding and insurance coverage.
How do you ensure client confidentiality?
We implement strict confidentiality protocols including secure evidence handling, private communication channels, and non-disclosure agreements for all team members.
Can you conduct investigations outside New York?
Our primary service area includes New York City, Long Island, and surrounding counties. We evaluate out-of-state cases based on specific requirements and resources needed.
What technology do you use for investigations?
We utilize advanced surveillance equipment, GPS tracking systems, digital forensics tools, and secure evidence management platforms to ensure comprehensive investigations.
How quickly can you start an investigation?
We typically begin investigations within 24 hours of initial consultation, depending on case complexity and resource availability.
Videos
Reviews (7)
Matt McGrath
Oct 24, 2021 Report
Liz and her team are incredible! I recently needed her help on an extremely time-sensitive landlord/tenant issue. Liz bent over backwards to accommodate my schedule and delivered everything that I needed well in advance of my deadline. Shes extremely professional and responsive, but more than that shes just a really kind and sincere person that actually cares about her clients and their issues. Ive worked with several private investigators in the past but moving forward Ill only work with Liz.
Lester Haberman
Jul 05, 2021 Report
Positive:Professionalism,Quality,Responsiveness
Professional, discreet and collaborative. When dealing with a sensitive situation, you couldn't ask for anything more
Jacob Throneburg
Jul 03, 2021 Report
Liz is amazing! She's extremely knowledgeable and knows what it takes to get the job done. Highly recommend her services for anyone needing PI work.
Amy P.
May 26, 2021 Report
I hired Lizzie last month! She is the best!! She is very responsive and detail oriented. Always followed up with anything I had suspicions on. I highly recommend her for any PI jobs!
Steph B.
May 22, 2021 Report
The most professional service I used. I needed for a case and she was private & talked to me whenever necessary or whenever I wanted. Highly recommend. and know she specializes in missing persons, infidelity . Ty for all your hard work!
Valeria Mitchell
Feb 05, 2021 Report
Liz is a great professional. I was looking for some information and visited her web-site around 9pm. She started communicated with me right away online. Real person at 9pm. Can you imagine? She got back to me at 9am next morning with the detailed response. Super quick and processional. I highly recommend her services.
Ryan S.
Jan 15, 2021 Report
I had to hire private investigators to gather more information on this person's history. I hired several private investigators based in Manhattan, with great reviews and credentials of the private investigators. My experience with them has been absolutely horrible. All of them said they could do this service or that service, with intention of extracting more money from the clients. I lost hope with private investigators until I found Liz (the owner of Root Investigations). When I reached out to her, unlike other private investigators, she was genuinely interested in listening to my situation.