Your Source for Professional Private Investigators in Jefferson County, IL
There are many investigative service companies in the Jefferson County, Illinois area, but very few investigative services companies can provide the experience of over 100 years in the investigative industry. Advanced Investigative Services, Inc is the one company that you can count on to provide you or your business with the best and most comprehensive types of investigations by private investigators, including:
- 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 Jefferson County, IL
Advanced Investigative Services, Inc can provide the most complex insurance or workman’s compensation fraud investigations, asset locate investigations, and even provide undercover surveillance for your company. Our private investigators have access to a wide base of knowledge and resources that they utilize with every investigation such as:
- 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 Jefferson County, IL
Are you looking for a professional private investigator on behalf of your business or for a personal investigation? If so, Advanced Investigative Services, Inc has been the leader in investigative services in Jefferson County, Illinois 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, Advanced Investigative Services, Inc can help.