A county or district attorney may purchase, for himself and for his staff members, liability insurance, or similar coverage from a governmental pool operating under Chapter 119, Local Government Code, or a self-insurance fund or risk retention group operating under Chapter 2259, to insure against claims arising from the performance of his official duties from state or county funds appropriated or allocated for the expenses of his office or from accounts maintained by the county or district attorney, including but not limited to the fund created by charges assessed by the county or district attorney in connection with the collection of "insufficient fund" negotiable instruments.
Tex. Gov't. Code § 41.012