Security Investigation OR Surveillance Services
ATO (CWLTH) resource. Rules Mate indexes this as part of the Australian compliance corpus. Click through for the regulator's primary source.
https://www.ato.gov.au/businesses-and-organisations/preparing-lodging-and-paying/reports-and-returns/taxable-payments-annual-report/work-out-if-you-need-to-lodge-a-tpar/security-investigation-or-surveillance-services
Rules Mate indexes Australian government compliance resources to make them searchable. We link to + summarise; always verify the live source before acting.