I got the same call, first I thought it was from ATO, gave my name (I am stupid).. they disconnected soon after that.. called back again and asked if it is scam.. they disconnected again... pretty sure now it is scam...

Automated message from Federal Police regarding an outstanding tax liability - more amusing than concerning.

Automated message from the 'Federal Police' and that I have an outstanding tax complaint which will result in criminal charges and a warrant has been issued for my arrest.

I think this is a scam call too