The strange video shows the moment the garage door opened on its own accord, before a broom flies out.
Closer inspection shows the household item then drop to the floor.
It was captured late at night and no one had been inside in days – according to reports.
The video was uploaded to the New South Wales Police Department’s Facebook page.
And the Australian authorities were left just as confused by what it could be.
In a post on their social media, cops wrote: “Wanting to know who’d left a garage in a police station car park open yesterday, we reviewed the CCTV – what it showed sent shivers down our spines.”
“Just before dawn, with the car park empty and quiet, a garage, that hadn’t been used in days, suddenly starts to open of its own accord.
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“With the door half open, a broom flies out, as if propelled by a ‘spirited’ janitor.
“It stays upright, then falls to the ground and gives one final kick, looking like it’s in the final throes of possession.
“A technician is currently inspecting the door. The ‘possessed’ broom sounds like a job for the Ghostbusters!”
Since they uploaded it on Friday, it has gone viral, racking up more than 200,000 hits.