The Richmond player was granted an exemption to enter Western Australia from Melbourne via a connecting flight through Adelaide on December 10 to attend his grandfather's funeral.
The brief stopover in Adelaide, where Stack said he did not leave the airport, triggered a requirement the rising star complete 14 days self-quarantine.
Police allege he instead left his approved self-isolation residence in Northam, the country town where he grew up, and stayed at an address in the southern Perth suburb of Belmont.
