For purposes of this subchapter, the following terms shall have the following meanings:(1) A peace officer eligible to receive payments under Texas Code of Criminal Procedure Article 56.542 is defined as an individual elected, appointed, or employed to serve as a peace officer for a government entity under Texas Code of Criminal Procedure Article 2.12 or other law, or is a former peace officer, who suffers personal injury as a result of criminally injurious conduct while performing duties as a peace officer.(2) The terms "total disability" and "permanent incapacity for work" are defined to mean a disability that permanently incapacitates a peace officer from performing the usual and customary duties of a peace officer.