• Professional and Efficient Investigative Services in Jefferson County Missouri

    Do you have questions and won’t rest until you get answers? Find private investigators in your local area to conduct a thorough inquiry and bring the facts to you. At Advanced Investigative Services, Inc, we offer a range of personal, professional, and business services to those in Jefferson County, Missouri, and throughout the surrounding areas. We started in 1996, thanks to retired police captain William R. Barrett, and we employ former law enforcement professionals from the local, state, and federal levels. Additionally, our expert staff offers over 100 years of combined experience. Trust our professionals for everything from employment screenings to spying on cheating spouses! Our investigative services include:

    • Attorney Services
    • Consulting
    • Workers' Compensation
    • Video Surveillance
    • Undercover Operations
    • Pre-Employment Screening
    • Background Checks
    • Insurance Fraud
    • Embezzlement/Theft
    • Asset Recovery/Searches
    • Process Service
    • Pre-Marital Background
    • Covert and Overt Camera Installation
    • Interviews/Statements
    • Product Liability
    • Pre-Trial Investigations
    • Crime Scene Investigations
    • Stalking
    • Missing Persons
  • Private Investigators in Jefferson County Missouri

    Those in the Jefferson County, Missouri, area know to contact the private investigators at Advanced Investigative Services, Inc to ensure the quality and depth of their investigations. Our trained professionals use years of experience to provide complete personal, professional, and business investigations in the local community. Some of the individual investigations we perform include pre-marital background checks, civil suits, divorce investigations, and missing-person searches. We also serve professionals and businesses with a range of services such as pre-employment screenings, background checks, workers’ comp claims, pre-trial investigations, process services, and more. Utilizing experts from various fields, we ensure the accuracy of your inquiry!

    • Video/Still Photography
    • Licensed Pilots
    • Licensed Investigators
    • Surveillance Technician
    • Accident Reconstructionist
    • Criminal Defense Detectives
    • Covert/Overt Corporate Investigators
    • Polygraph Examiner
    • Audit/Fraud Expert
    • Executive Protection Experts
  • We proudly provide services to those in Jefferson County, Missouri, and throughout the surrounding communities. Our staff is located across multiple states to ensure we pursue your case wherever it goes. Let our licensed staff install a surveillance system for your property that comes complete with 24/7 internet accessibility. The goal of Advanced Investigative Services, Inc is to provide the most accurate investigations at rates that our clients can afford. Call for a free, no-obligation consultation of your case or find our website for more details!

  • Executive Protection Services

    • Experienced and professional team
    • Surveillance operations and surveillance detection
    • Our Lead Protection Specialist has over 20 years of experience as a law enforcement officer and specializes in protective services for the US military.
      • Extensive experience in undercover operations, surveillance, and criminal investigations
      • Protection experience with high-level executives and government officials
    • Our team’s training consists of:
      • Firearms
      • Defensive tactics
      • Surveillance
      • Driving tactics
      • Completed an elite training school in personal protection
  • Contact Your Local Private Investigator in Jefferson County Missouri

    Are you looking for a professional private investigator to look into a business or a personal matter? If so, Advanced Investigative Services, Inc has been the leader in investigative services in Jefferson County, Missouri since 1996. We have a team of professional and experienced investigators with the right skill set to handle any type of investigation. Whether you are in search of a missing person, want to run background checks on potential employees, or need video surveillance, call Advanced Investigative Services, Inc today.