A man has been charged with possessing child abuse material after he allegedly "inadvertently" displayed inappropriate images during a university lecture.
The incident allegedly happened on February 5 in Melbourne's CBD and was reported to police.
Days later, police executed a search warrant at a home in the bayside suburb of Middle Park.
Multiple electronic devices were seized and a 70-year-old man was interviewed.
A day later, detectives flew to Sydney and searched another home in the city's eastern suburbs where more devices were seized.
The Middle Park man has been charged with one count of possessing child abuse material under Commonwealth law and two counts of the same charge under Victorian law.
Detectives are not looking for anyone else as part of the investigation.
The man will face Melbourne Magistrates' Court on Thursday.
