The 71-year-old faces five counts of rape, three of indecent assault, three of performing an indecent act, and one of inducing a girl to do an indecent act on him.
Bradley moved to the US when he was a young man and lived there permanently until a few years ago when he moved back to New Zealand.
Upon finding out he was living in New Zealand again, the complainants contacted police about the historical allegations.
His son, Kristen Bradley, gave evidence via audiovisual link from America, saying his father confessed the crimes to him during a heated phone conversation.
Defence lawyer Wayne McKean said in his closing address to the jury that Bradley was not confessing the crimes to his son, but was confessing to having had sex with one of the complainants.
He said all charges relating to the first complainant were not accepted and that her evidence was "rubbish", and that while Bradley did have sex with the second complainant, it was consensual.
In his summing up today, Judge Denys Barry reminded the jury people who had been sexually abused might not react in ways that could be expected.
"Some, in distress or shock, may complain to the first person they see. Others may react with shame, shock, or confusion and may bottle it up and not go to the police for a long time. There's no typical response, experience shows," he said.
Given the length of time between the alleged offending and the trial, Judge Barry said the jury would need to decide for themselves whether they trusted each witness' recollection of events.
"The Crown case relies unabashedly on you accepting the complainants' accounts," he said, adding the jurors would need to exercise particular caution in considering evidence of what happened "all those years ago".
The jury went out about 1.30pm.