This Part defines service injury , service disease and service death .
An injury, disease or death is a service injury, disease or death if:
(a) it is related to defence service in the ways mentioned in section 27 or 28; or
(b) it resulted from certain treatment provided by the Commonwealth (see section 29); or
(c) an aggravation of, or a material contribution to, a sign or symptom of the injury or disease relates to defence service (see section 30).
However, even if an injury, disease or death is a service injury or disease under this Part, the Commission might be prevented from accepting liability for the injury, disease or death by an exclusion under Part 4.