Criminals are using headsets from gaming consoles such as Xbox and PlayStation to plan drug smuggling operations because conversations are private, police say.
A classified police document shows criminals are using technology - including the privacy allowed by gaming consoles - to evade detection.
"Criminal use of new and emerging technologies has significant implications for law enforcement communications intercept capabilities, counter intelligence and other operational security issues," says a classified police intelligence document.
The National Strategic Assessment document, released under the Official Information Act, says understanding criminal use of mobile communications technologies is likely to be increasingly crucial to the success of law enforcement.
"Consequently, there is an ongoing requirement to identify and understand contemporary communication technology trends in order to keep law enforcement abreast of developments that may impact on the success of operations."