More homes with clandestine drug laboratories have been uncovered and performance-enhancing drug seizures are on the rise, according to an Australian Crime Commission report.

In the 2011-12 financial year, the number of drug arrests was the highest on record and demand for cocaine remains high, with more seized nationally than ever before. The amount of illicit drugs seized, 23.8 tonnes, was also a record, with an estimated street value of $1.5 billion.

Getting higher: police are uncovering an increasing number of clandestine drug labs. Credit:Scott Hannaford

The Illicit Drug Data report, released on Monday, also shows signs Victoria may be in the grip of another wave of heroin addiction, with a higher rate of seizures and arrests over the drug than in any other jurisdiction.

Commission chief executive John Lawler said it was troubling that a record number of clandestine drug labs had been uncovered, with most set up by addicts for personal use in their homes.