Thomas James Hall, aged 30, of Peveril Street, Douglas, has appeared in court charged with eight offences.
He is accused of five counts of possessing indecent images of children and three counts of theft.
The images are alleged to total 57.
Defence advocate Sara-Jayne Dodge said that a report regarding capacity to enter pleas and fitness to stand trial is awaited.
The case was adjourned until October 31.