Queensland criminologist Paul Wilson has appeared in Brisbane's Magistrates Court today for a two-day committal hearing on indecent dealing charges.

Wilson is the former head of criminology at Bond University on the Gold Coast.

He faces six charges of indecent treatment of girls under 17 years over incidents that allegedly occurred 40 years ago.

Magistrate John Costello heard that four witnesses would give evidence during the committal hearing, which is expected to take two days.

There are 54 witness statements.

Wilson's lawyer, Bill Potts, told the court there was a change in the recollections of witnesses since the matter was first investigated three years ago.

The matter has been adjourned for the magistrate to read the statements.

A number of diaries have also been handed to the court.