Western Cape police have seized over R30 million in illicit drugs in the last three months, provincial police commissioner Arno Lamoer said on Thursday.
"We urge communities that the demand for drugs must go down. As long as there is a demand for drugs, there will be a supply," he told reporters in Cape Town.
He could not estimate the number of drugs in circulation, as they entered and exited the province too quickly. It was also too easy to manufacture drugs. "Tik" (methamphetamine) could be made in a kitchen.
Lamoer said there was a clear link between taking drugs and other crimes.
Since April this year, the State had secured 5400 convictions for drug-related crimes, including murder and attempted murder.