In recent years, most sophisticated drug rings have been cracked after crucial evidence was gleaned from tapped telephone calls or text messages, even if messages were in code.
This has forced criminals to find new ways to speak with each other - including online games played on Xboxes and PlayStations - or voice over internet protocol software such as Skype.
Popular titles such as Call of Duty allow gamers from across the world to play - and speak privately - with each other over the internet.
While most gamers use the microphone headsets to sledge other players, police believe criminals use the gaming consoles to plan drug smuggling instead of email or cellphones.
One of those was drug kingpin Daniel Hsu, jailed for more than 17 years after 5kg of methamphetamine was found in his North Shore home.
And last year, detectives bugged an apartment in the exclusive Metropolis tower in Auckland's CBD to eavesdrop on a jet setter they allege took a top role in a criminal ring selling designer drugs.
They placed the bug after attempts to intercept the man's private conversations were thwarted by "military grade" encryption technology on his phone and email, as well as using Skype software to talk with his alleged co-conspirators.