Western Australia’s police commissioner is backing the Premier’s plan to keep some tough border controls in place beyond the COVID-19 pandemic in an effort to stop drugs entering the state.

Chris Dawson said the extra police powers implemented during the pandemic had resulted in a crackdown on meth and other drugs.

“We stop vehicles and inspect them for fruit fly, for honey, for flowers and all sorts of things … but there’s another pest out there and that’s called meth,” he told 6PR radio on Wednesday.

“That doesn’t just destroy crops … it destroys people’s lives.”

Mr Dawson said he hoped to “refine” the powers, similar to what was done to protect the state’s biodiversity.

“We know it’s working through this state of emergency. Why would we not want to stop meth coming in?” he said.

Almost $50m in cash and “a whole stack of meth” had been taken off the streets in the past six months, resulting in less crime, Mr Dawson said.

“I’m not into disruption, I’m into destruction of these syndicates … we want to wipe out drug trafficking,” he said.

Mr Dawson said while he did not want to live in a police state, he would seek some legislative change following the March 13 election.

“When the new government gets elected, I’ll be putting a legislative reform package through the Minister for Police (and) the Attorney-General,” he said.

Mr Dawson said his position on the issue and his job was always apolitical.

“I don’t want to get in a political spat because my job as police commissioner is to police the criminal activity going on,” he said.

Premier Mark McGowan on Tuesday flagged keeping some interstate border measures in place after the pandemic but was forced to backtrack on one aspect hours later.

Mr McGowan said he had been discussing possible ideas with Mr Dawson, including stationing police at the border for vehicle searches.

But he had to clarify his position on continuing with the G2G pass system — which would allow personal information to be collected — saying it “obviously” would be scrapped.

Opposition Leader Zak Kirkup had accused Mr McGowan of overreaching and treating everyone like a meth trafficker.