³ÉÈË¿ìÊÖ

³ÉÈË¿ìÊÖ 5 live have found that penalties given to teachers for cheating rose by 50% between 2015 and 2016.

Last year, there were just under 400 incidents.

Mark Lotsu was head of biology at a Surrey boarding school. Last year, he was banned from teaching.

He told ³ÉÈË¿ìÊÖ 5 live how and why he helped his pupils cheat on an A level exam.

He said: "You know it's morally wrong, but under the circumstances, under such pressure, I felt like, at the time, I had no other option."

This clip is originally from Stephen Nolan on Sunday 17 September 2017.