Looking to Hire a Private Investigator in Clinton County, IL
If you are the owner or manager of a large company or small business, having access to the information you need about the people you hire is important. It also isn’t possible for you to be at your place of business every minute of the day, so how will you know if your business is being run correctly and effectively in your absence? Advanced Investigative Services, Inc can provide you with the information you need by providing the most comprehensive investigative and monitoring services in the Clinton County, Illinois area. From the most basic pre-employment background checks to state-of-the-art video surveillance systems, Advanced Investigative Services, Inc can provide you with thhe information you need to assure your business is safe and your employees can be trusted. 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
- Missing Persons
- Interviews/Statements
- Product Liability
- Pre-Trial Investigations
- Crime Scene Investigations
- Stalking
Private Investigators in Clinton County, IL
Advanced Investigative Services, Inc has worked with major corporations and insurance companies to provide the most complex investigations on workers’ compensation, fraud, theft, and embezzlement. We also work with numerous law firms to provide investigations related to criminal, civil, and divorce cases. Our team of expert private investigators has over 100 years of combined investigation experience and our team consists of investigators who specialize in:
- 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

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 currently specializes in protective services as a special agent for the United States 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 Clinton County, IL
Are you looking for a professional private investigator for a personal or business or business matter? If so, Advanced Investigative Services, Inc has been the leader in investigative services in Clinton County, Illinois since 1996. We have a team of professional and experienced investigators with the right skills 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, Advanced Investigative Services, Inc is here to help.