Our Founder

John Shinkowsky, CPP, CII / Licensed Pennsylvania Private Investigator / Founder

John Shinkowsky, CPP, CII, is the founder of Shinkowsky Investigations. Shinkowsky Investigations is a licensed Pennsylvania Private Investigation Agency founded in 2002. Our private investigation company is headquartered in Harrisburg, PA, with professional investigators and process servers in central Pennsylvania, including York, Lancaster, Lebanon, and Carlisle, PA, among other areas of the Commonwealth.

Chief John Shinkowsky / Law Enforcement Experience in Pennsylvania

John Shinkowsky attended the Municipal Police Academy at Harrisburg Area Community College in Harrisburg, PA. He graduated at the top of his academy class, receiving awards for Academic Excellence and Highest Overall Average (including academic, physical fitness, and firearms). John began his law enforcement career as a patrol officer with the Tower City Police Department in Schuylkill County, PA. John reached the rank of Sergeant with Tower City P.D. John then accepted a position with the Elizabethville Police Department in Dauphin County, PA. John was subsequently promoted to Chief of Police and served in that position for ten years. He was an active member of the Dauphin County Accident Reconstruction Team, the DUI Task Force, and the Police Communications Advisory Committee. As Chief of Police, John’s leadership resulted in the police department being awarded a Governor’s Highway Safety Award, an International Association of Chiefs of Police Chiefs Challenge Award, National Safety Belt Honor Roll, and a Traffic Safety Education Award. During his tenure as Chief, John received various acknowledgments by the Dauphin County District Attorney’s Office and the Pennsylvania State Police. John has also received the Distinguished Police Service Award. John has investigated thousands of criminal incidents during his law enforcement career. John has been awarded life membership in both the Pennsylvania Chiefs of Police Association and the International Association of Chiefs of Police. He is also a charter member of the United States Association of Professional Investigators.

Private Investigation Experience in PA

After his law enforcement career, John worked for a Pennsylvania private investigation agency. During his tenure, that PI company saw tremendous growth and became licensed in eight additional states. John was promoted to various positions including Shift Supervisor, Project Manager, and Director of Investigations. When John left that firm, he held the position of Vice President. John has conducted many investigations in the private sector. These investigations include:

  • Accident Investigations and Personal Injury Investigations
  • Background Investigations
  • Corporate Investigations
  • Criminal Investigations
  • Domestic and Family Law Investigations
  • Insurance Fraud Investigations
  • Missing Persons Investigations
  • Product Counterfeiting and Product Diversion Investigations
  • School Residency Verifications
  • Surveillance
  • Theft Investigations

Private Security Experience in PA

John is experienced in providing security services for a variety of situations. He has supervised armed security officers during high threat security details including events targeted by domestic terrorists. John has supervised security at several sites deemed valuable to the security of the United States, including serving as Project Manager for armed security at one such site. John also has provided executive protection to corporate executives and celebrities.

Law Enforcement, Security and Private Investigation Training

John has extensive formal training in a variety of criminal investigation and crime prevention areas. He has received training in:

  • Accident Reconstruction
  • Background Investigations
  • Child Abuse
  • Computer, Internet and Cyber Security Crimes
  • Crime Scene Processing
  • Drug Identification and Investigations
  • Fraud Investigation
  • Homicide and Death Investigations
  • Security Surveys
  • Terrorism

John has completed the Advanced Course on the Reid Technique of Interviewing and Interrogation as well as the Scientific Content Analysis (SCAN) course. John also has been trained in Executive Protection by the United States Secret Service. John is Board Certified in Security Management, having obtained the Certified Protection Professional (CPP) designation. Throughout the world, the CPP designation is acknowledged as the security profession’s highest recognition of practitioners. It is evidence that an individual is “Board Certified in Security Management”. The CPP is awarded based upon experience and passage of an examination that provides an objective measure of an individual’s broad-based knowledge and competency in security management. Ongoing professional development is required in order to maintain the credential. The CPP is administered by ASIS International, the preeminent international organization for security professionals, with 32,000 members worldwide.


John has been a presenter of various training courses to law enforcement, security, and related agencies personnel. He was a certified Chemical Aerosol Sprays instructor and a Pennsylvania Department of Transportation Crash Reporting instructor. He has instructed Accident Investigation at the Public Safety Center of Harrisburg Area Community College. John also provided numerous in-service training programs to law enforcement and security personnel.


Office Address:

4511 Jonestown Road, 2nd Floor

Harrisburg, PA 17109


Mailing Address:

Post Office Box 126538

Harrisburg, PA 17112


(800) 276-0202

FAX: (800) 996-1246

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