Mark Maas, P.I.

Professional Investigations & Protective Services

About Mark Maas, P.I.

Mark Maas has been granted Private Detective License MD-471-2006 by the Court of Common Pleas for Adams County, Pennsylvania. He is authorized by law to conduct investigations and provide protective services across the Commonwealth. Mr. Maas has also been issued Private Detective License #106-4559 by the Maryland State Police which authorizes him to provide private detective services in the State of Maryland.

He has over thirty years of experience as a Law Enforcement Officer including assignments as a Police Detective investigating major crimes such as homicide, burglary, robbery, assault and child abuse; as a Prosecutor's Office Criminal Investigator working with victims and witnesses, locating non-custodial parents owing support obligations and preparing criminal and civil cases for court; as a uniformed Lieutenant and Captain supervising law enforcement officers; as a state-certified Police Firearms Instructor and as a Retail and Warehouse Loss Prevention Manager for a major department store chain. 

Mr. Maas has also conducted extensive criminal defense investigations for defendants represented by private attorneys, as well as both state and federal public defenders. These investigations routinely involve visits to scenes, photography, canvasses for witnesses, review of police investigation reports to include technical laboratory examinations and interview of key witnesses who may be called by the prosecution.

He has been certified by the Pennsylvania State Police as a Lethal Weapons Agent under PA Act 235 and is an active member of the Pennsylvania Association of Licensed Investigators, the Maryland Investigators and Security Association and the Fraternal Order of Police. He is a graduate of both the Basic and Advanced Reid Schools of Interrogation. Mr. Maas also attended and successfully completed the Pennsylvania State Coroners' Education Board's Basic Education Course for Coroners and maintains his certification as a Death Investigator by attending mandatory annual training seminars.

Mr. Maas has authored articles published in professional law enforcement and investigative magazines on firearms and related topics and has been interviewed by both the print and electronic media on matters related to the investigative profession, proposed legislation and ethical standards for investigators.
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