Warning signs

Busselton motorists are sharing information about breath test and speed camera locations in a move which police have warned could lead to prosecution.

Following a controversial move by Perth internet users to warn motorists of random breath test locations, more than 200 people have joined a similar Busselton Facebook page to dodge police attention.

Internet users have used the site to share sightings of police cars and speed cameras.

The site’s anonymous creator told users they thought sharing the whereabouts of police would "hopefully save us a few bucks or worse".

A sign, warning motorists of upcoming speed cameras, was also displayed on the Busselton Bypass last weekend.

However, Busselton Senior Sergeant Steve Principe was aware of the move but warned it could land them with a fine or charge for disrupting traffic.

Those responsible for the signs, Snr Sgt Principe said, could be issued a $50 fine and charged with obstructing police if they refused to move.

"If it interferes with the flow of traffic then it’s an offence," he said.

However, while the internet page is legal, police have warned about trying to use it to dodge speed cameras and breath tests.

"It’s safer to slow down and do the right thing," Snr Sgt Principe said.

The Facebook site’s creator, who declined to comment, told internet users the use of hand held speed cameras on Bussell Highway near Vasse, in a site where they claimed they had never seen a crash, proved police were "there for the money".

Snr Sgt Principe denied revenue raising was behind the police’s actions and said he would be "happy" to stop the officer activity if fatalities stopped.

"At the end of the day our sole view is public safety. We do this because there’s an expectation on us to have a road safety strategy to keep people alive," he said.

"When someone has a crash and dies it costs the community $1 million and that’s not to take in the human cost to families and friends."

A similar Perth site drew criticism from the State Government and opposition as well as the WA Police Union.

The WA Police Union’s president Russell Armstrong told the media police officers would monitor the website to try and catch drivers who were trying to avoid booze buses.