Our Services

Investigation and Security Services in New York

At John Shields Detective Agency, our team of investigators has over 70 years of experience providing top-tier investigation services. Unlike many detective agencies that only focus on investigation services we also provide numerous other services, such as escort services and jewelry protection services.

Our most popular services include:

  • Security: At John Shields Detective Agency, we specialize in high-end security services, such as armed and unarmed security detail, asset protection, and employee transportation. We also provide high-value security, protected courier service, and event security.
  • Private Investigation: Our experienced private investigators have received high marks from the NYPD and are among the best in our industry, specializing in surveillance, pre-trial and litigation support, marital infidelity, intellectual property rights, and background checks.
  • Infidelity Investigations: Our investigators can discretely use a variety of techniques and equipment to get the information necessary to determine if your spouse has been unfaithful. Our services are very discrete for these particular services for your peace of mind.
  • Jewelry Security and Transportation: We offer jewelry security services and secure transportation for buyers of high-end jewelry and can even provide escort services for your convenience. For more information these particular services, please contact our office.
  • Bodyguards and Executive VIP Protection: If you need serious protection, our executive VIP protection services provide you with extreme protection. We also offer bodyguard services in the event that you or your loved one needs protection on the day-to-day basis.

Schedule a Free Estimate

At John Shields Detective Agency, we believe in building strong client relationships based on trust and providing the highest level of service. We want to earn your trust and show you why we have been New York’s go-to investigation and security firm since 1943. To find out more about our services, give us a call at (212) 682-6094!

Why Choose Us?

  • Free Estimates/Consultations
  • Most Reliable In Our Field
  • Over 7 Decades of Experience
  • Licensed, Bonded & Fully Insured
  • Highly Trained & Fully Certified Staff
  • Expertise to Provide Best in the Business