[1] In 1972, he moved to Melbourne and helped establish the psychology department at La Trobe University, where he ran a sex therapy clinic which was equipped with a double bed for research purposes.
His lectures included lengthy footage of couples having sex, and students were made to replicate the controversial Milgram experiment.
In 1994, he became head of the psychology department at Bond University after being recruited by criminologist Paul Wilson, who was later convicted of child sex offences.
[4] As a private consultant, he prepared reports for the Family Court about whether allegations of sexual abuse raised during child custody disputes were credible.
[8] Montgomery and his wife, fellow psychologist Laurel Morris, were living at Runaway Bay on Queensland's Gold Coast at the time of his arrest.