Human Services (Medicare) Act 1973

in the course of searching, in accordance with a warrant, for particular evidential material, an authorised officer or an officer assisting finds evidential material that the authorised officer or officer assisting believes on reasonable grounds to be:

evidential material in relation to the relevant offence or relevant civil contravention to which the warrant relates, although not the evidential material specified in the warrant; or

evidential material in relation to another relevant offence or relevant civil contravention; and

the authorised officer or officer assisting believes, on reasonable grounds, that it is necessary to seize that evidential material in order to prevent its concealment, loss or destruction, or its use in committing, continuing or repeating the relevant offence or relevant civil contravention or the other relevant offence or relevant civil contravention;