In November of 2000, Hickman was elected Harris County Constable of Precinct 4 - the largest Constable agency in the United States. He was sworn into office on January 1, 2001. Hickman continually moved the Precinct 4 Constable’s Office forward through innovation and excellence. Hickman instituted new advancements in technology and equipment to streamline the department and provide a more effective use of resources enhancing safety and security in our community.
As an example of his innovation, Hickman worked diligently with the two courts located in Precinct 4 to create a paperless warrant system which saved taxpayers money through the process of keeping warrant information and tracking on computers instead of the old system of physical paper and boxes. This not only created a more efficient warrant division, it became a model for other agencies.
Hickman was named Constable of the Year on three occasions: In 2006 and 2013 by the National Constables and Marshals Association and in 2007 by the State’s Justices of the Peace and Constable Association.