They were among 200 officers tested for alcohol and drugs on Monday

Officers were targeted after a tip off they had taken drugs at Stereosonic

were in two males and one female officers

Three Western Australian police officers who were stood down after testing positive to illicit drugs are believed to have taken meth or ecstasy at Stereosonic music festival.

Two males and one female officer failed the drug tests on Monday after they were targeted by investigators following a tip-off that they had allegedly taken drugs at the dance music festival the day before.

They were forced to give urine samples at their homes where one male officer tested positive to methmethamphetamines while the female and other male had traces of ecstasy in their systems, The West Australian reports.

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WA Police Commissioner Karl O'Callaghan (pictured) said the three officers were stood down after testing positive to illicit drugs during a targeted operation on Monday

'I am aware that they were targeted tests based on intelligence... we had received some information about these officers,' WA Police Commissioner Karl O'Callaghan said.

'At some stage they must have obtained it (the drugs) from somebody... so that is a concern for me.

'They are carrying lethal force options and they need to be clean and it is my job to make sure that they stay that way.'

Mr O'Callaghan said even though they had drugs in their systems, it was unlikely the three officers would be charged because they did not have illicit substances on them.

They were among about 200 police officers at five suburban stations were tested on Monday for alcohol and drugs by officers from the WA Police Internal Affairs Unit.

There remains a zero tolerance for any police officer found with illicit drugs in their system, Police Commissioner Karl O'Callaghan said in a statement.

Two males and one female officer failed the drug tests on Monday after they were targeted by investigators following a tip-off that they had allegedly taken drugs at Stereosonic music festival the day before (file photo)

'Officers make critical decisions under duress and they must not be affected by illicit substances or alcohol,' Commissioner O'Callaghan said (stock of WA Police car pictured)

'Officers make critical decisions under duress and they must not be affected by illicit substances or alcohol,' he said.

'This is for the safety of the community and their frontline partners.

'Monday's day of action by Internal Affairs should send a sobering warning to any officer using illicit substances at any time.'

Regulations to allow random and target drug and alcohol testing were introduced in December 2011.

During the four years of testing, a further 11 officers have exceeded 0.02% blood alcohol levels and a further seven officers have tested positive to illicit drugs, police said.

Around 200 police at five suburban stations on Monday were tested for alcohol and drugs by officers from the WA Police Internal Affairs Unit. Three constables tested positive to ice and amphetamines and have been stood down (stock photo)

Excluding the most recent three officers, two officers have tested positive to cannabis, one to methamphetamine, two to MDMA and one to anabolic steroids.

Six resigned prior to the conclusion of a Loss of Confidence Process, and it was accepted that the seventh may have unwittingly ingested a steroid in an exercise supplement.

Since 2012, almost 9,500 tests have been conducted on WA officers and less than one per cent (0.07%) have tested positive to illicit drugs.

But Commissioner O'Callaghan said it was important to identify the few.