SCAM tax office recorded message

What I don't get is why these numbers are not shut down immediately. Also, the people behind this scam should be able to be identified from the number, and so prosecuted.

Caller: Tax office scammer

Male Voice sounding pushy and threatening.

Tax scam

Tax office Scam caller

ATO scam about tax avoidance, hung up when said registered mail had been returned

Tax Office Scam

Automated message allegedly from ATO ... reported to scamwatch.gov.au

Caller: SCAM VOICEMAIL

Threatening and illegitimate voicemail left - report as nuisance call with your provider and have them investigated

Tax office scam saying arrest warrant has been issued

Tax Office scam - don't press 1, and don't call them back.

Computer voice with ATO Scam