- Sergei Kuchinski is the trilingual founder of Kuchinski Law Group, LLC. Prior to founding the firm, he served as a sworn Police Officer in the State of Illinois preventing and investigating criminal activity. During his time on the force, Sergei Kuchinski received numerous awards, honors, as well as specialized training through the State and Federal Agencies. Sergei A. Kuchinski is a State of Illinois Certified Criminal Investigator, Death Investigator, Criminal Interviewer and Interrogator, and Federal Bureau of Investigation Certified Statement Analyst.