In considering whether a technical assistance request or a varied technical assistance request is reasonable and proportionate, the Director - General of Security, the Director - General of the Australian Secret Intelligence Service, the Director - General of the Australian Signals Directorate or the chief officer of an interception agency, as the case requires, must have regard to the following matters:
(a) the interests of national security;
(b) the interests of law enforcement;
(c) the legitimate interests of the designated communications provider to whom the request relates;
(d) the objectives of the request;
(e) the availability of other means to achieve the objectives of the request;
(f) whether the request, when compared to other forms of industry assistance known to the Director - General of Security, the Director - General of the Australian Secret Intelligence Service, the Director - General of the Australian Signals Directorate or the chief officer, as the case requires, is the least intrusive form of industry assistance so far as the following persons are concerned:
(i) persons whose activities are not of interest to ASIO;
(ii) persons whose activities are not of interest to the Australian Secret Intelligence Service;
(iii) persons whose activities are not of interest to the Australian Signals Directorate;
(iv) persons whose activities are not of interest to interception agencies;
(g) whether the request is necessary;
(h) the legitimate expectations of the Australian community relating to privacy and cybersecurity;
(i) such other matters (if any) as the Director - General of Security, the Director - General of the Australian Secret Intelligence Service, the Director - General of the Australian Signals Directorate or the chief officer, as the case requires, considers relevant.