A teacher who sexually abused 12 pupils over 11 years has been jailed for four years, after an earlier complaint against him was dropped by his school over “insufficient evidence” and the authorities were not informed.
Martin Gallacher, 46, groomed and abused vulnerable boys at a school in Paisley, Scotland, exploiting his position as a teacher and his involvement in extracurricular activities to gain access to pupils.
He targeted children during lessons and lunch breaks, as well as through badminton and football clubs he ran within the school.
The case has raised serious questions about how the initial complaint was handled after it emerged that Renfrewshire Council did not inform the authorities when one of Gallacher’s victims reported the abuse in 2024.
An internal school investigation was subsequently dropped over “insufficient evidence”, and Gallacher was allowed to remain in his teaching role.
How Gallacher targeted his victims
The court heard that Gallacher targeted pupils during lessons and when they were alone. He also contacted some of the boys through messaging and gaming platforms, and gave them gifts and money.
His abuse included rubbing children on their bodies and touching them inappropriately.

Gallacher denied wrongdoing, claiming that any physical contact with the boys had been innocent and occurred through his roles as a teacher, club organiser or sports coach.
However, he was found guilty following a trial at Paisley Sheriff Court last month.
Sheriff condemns abuse of trust
When Gallacher returned to court for sentencing, Sheriff Eoin McGinty handed him a four-year prison sentence and condemned his exploitation of the pupils.
“This was serious sexual offending committed on your pupils,” the sheriff said.
He described Gallacher’s actions as “a profound breach of that trust”, emphasising the responsibility teachers have to protect children in their care.
“Pupils are entitled to have trust in their teachers as people who will safeguard their welfare,” he said.
The sheriff also stressed that parents entrust teachers with the care and responsibility of their children.
Council commissions independent review
The handling of the 2024 complaint has become a key issue in the case, particularly after it emerged that the authorities were not informed and Gallacher remained in his teaching role.
Following Gallacher’s arrest and conviction, Renfrewshire Council said it was commissioning an independent learning review into the case.
The council’s decision comes amid questions about how the complaint was dealt with and what lessons can be learned from the case.
The available information does not establish whether the abuse of the other pupils could have been prevented had the original complaint been handled differently.

