The Legal Affairs group is responsible for providing legal services and counsel to all TDA programs and divisions. Legal Affairs is also responsible for enforcement of the department's regulatory functions, including prosecutions and settlements, and is the liaison with the Texas Attorney General.

The Enforcement section investigates violations of state and federal pesticide, herbicide and Right-to-Know laws and regulations. In addition, Enforcement investigates violations of consumer laws and programs, including fuel quality, plant quality, seed quality, weights and measures, commodity warehouses, egg quality and the Agricultural Protective Act.

The General Counsel section provides legal counsel to TDA executive staff, divisions and programs, and a variety of boards and advisory committees.

The Public Information Office manages all public information requests received by the department.