Police and customs have cracked down on almost 300 people involved in buying drugs through the dark web.
Law enforcement agencies around the world took part in Operation Hyperion, a coordinated effort to target traders of illegal drugs over the internet.
From October 22 to 28 agencies focused on packages coming through mail centres, and then tracked these back to buyers and sellers.
Among the illegal drugs found were small amounts of cocaine, methamphetamine, heroin, alpha PVP, LSD, ecstasy and cannabis seeds.
National high tech crime group manager Kelly Knight said the local operation has so far resulted in six arrests and 66 formal warnings, and has identified almost 300 people involved in the illegal drug trade.