Stephen Patrick Andrew Kayser, a 68-year-old former teacher, has been charged with 49 historical child sexual offences involving 19 primary-aged children in Queensland, with the alleged offences occurring between 1988 and 1990.

Kayser appeared in Brisbane magistrates court following an investigation named Operation Whiskey Mott, which began after a formal report was filed by one of the alleged victims on June 10, 2024.

The charges against him include 27 counts of indecent treatment of children under 16, 17 counts of taking a child for immoral purposes, and five counts of common assault.

Kayser was arrested on August 10, 2024, after a search warrant was executed at his home in Brisbane's south.

During the court proceedings, his defense attorney argued for bail, emphasizing that there had been no allegations of crimes since 1990 and that Kayser was needed at home as an informal carer for his wife.

Despite police opposition to bail, Magistrate Belinda Merrin granted it under strict conditions, which include reporting to a police station three times a week and restrictions on travel and contact with witnesses.

Detective Acting Inspector Deanna Geck highlighted the seriousness of crimes against vulnerable children and urged victims and witnesses to come forward.

Police are actively encouraging anyone with information related to the case or those who have been victims of similar offences to reach out.

The next court appearance for Kayser is scheduled for September 2, 2024, where the case will be further addressed.

The case is set to be adjourned until the next court date, allowing for further developments in the investigation.

Kayser had a teaching career spanning 43 years before retiring in 2020, and he was suspended by the Queensland College of Teachers Board in 2022.