Essential and Continuing Operations / COVID19: In the interest of the health and safety of our staff and the community, our offices will remain closed to the public, and most of the agency’s prosecutors and staff will work remotely, until further notice. The HCDAO continues to perform key functions in the county criminal justice system and will do so during the Covid-19 pandemic. Click Here for More Information

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Stephen Clappart- Chief Investigator

Stephen Clappart is a native Houstonian, studied Psychology at the University of Houston. 

In August of 1967 Stephen joined the Houston Police Department and graduated from the Houston Police Academy, class 36, which was conducted by the Houston Police Department in conjunction with the University of Houston.  After graduation Stephen served in the Radio Patrol Division, the Juvenile Division and was promoted to Detective in April of 1976. 

After promoting to Detective, Stephen served in the Homicide Division, the Internal Affairs Division and the Fugitive Apprehension team. During his tenure in the Homicide Division Stephen served on a Jamaican Organized Crime Task Force which was sponsored by the ATF and DEA federal agencies.

In 1991 Stephen retired from the Houston Police Department and joined the Harris County District Attorney’s Office as an Investigator. While with the Harris County District Attorney’s Office he worked in the Misdemeanor Division, the Civil Rights Division, and the felony Trial Bureau. In 1997 Stephen moved to the Abilene area to assist in caring for aging relatives.

 While in west Texas, Stephen joined the Taylor County District Attorney’s office as an investigator. In 2004 Stephen returned to the Harris County District Attorney’s Office as an Investigator and retired in December of 2012.

In January 2013 Stephen joined the Liberty County Sheriff’s Office as a Sergeant Investigator.  While with Liberty County Stephen worked many types of cases including Capital Murder and numerous child molestation cases. Stephen retired from Liberty County in June 0f 2015 and began his own private investigation company.

He has taught courses on investigating organized crime through Texas A&M University extension program, throughout the state of Texas. His interests also include studying ancient religions and mythology. In January of 2017 Stephen returned to the Harris County District Attorney’s Office as the Chief Investigator.