Justice Rebecca Edwards has reserved her decision on the appeal.
There were 160 scam reports made Netsafe during Easter in 2017 and 736 in 2020.
Police have declined to release details about the phone call to the nation's top cop.
The police officer's appeal was dismissed by the court.
Defence lawyer: 'He wasn't prepared to take that secret with him to the grave.'
'Thirty-three years later the question of whether the game is up is yours ... alone.'
The Crown has begun closing its case today in the High Court at Auckland.
Auckland dad: 'I did it but I wasn't thinking.'