The WA Liberal party is seeking advice on whether a social media account parodying leader Mike Nahan and set up by Labor breaches the electoral act.
The Twitter account named The Loop WA invited readers to the meetmike.com.au website, which says the Liberals will increase TAFE fees, slash penalty rates and privatise utility Western Power.
The Twitter profile has since been taken down after the Liberals complained, but the website remains.
Labor didn't field a candidate in the Cottesloe by-election on Saturday, but put up "Meet Mike" posters at polling booths next to Liberal victor David Honey's campaign material.
Deputy Premier Roger Cook said Labor was "simply trying to raise Mike Nahan's profile".
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"We thought that his profile ... in the Cottesloe by-election was a bit low," Mr Cook said on Monday.
Premier Mark McGowan made similar comments.
"Drawing attention to Dr Nahan and the dysfunctional Liberal party is something Labor will do," Mr McGowan said.
"They really are performing very, very badly and bringing attention to their policies, I would have thought would be something in the public interest."
Dr Nahan called it a dirty tricks campaign.
"It exposes them to claims, I think appropriately, of dishonesty and trickiness," he said.
"It was inappropriate use of social media. Instead of copping it sweet, they say it was good, an appropriate use."
