The Western Australian Government is currently reviewing its legislative approach to prostitution. In parallel with this process, the Law and Sexworker Health (LASH) team independently compiled extensive collateral data on the prostitution laws in WA, and prosecutions (2000–2005) resulting from those laws; the structure and function of the sex industry in Perth; the demographics, behaviour, health, and welfare of a representative sample of brothel-based sex workers in Perth; and the operation of health promotion and clinical services in WA.