A relief teacher sent photos of primary school pupils to a man he knew was seeking medical help for his sexual attraction to children.
The Teachers' Disciplinary Tribunal has released its decision to cancel the teacher's registration and censure him from June 26.
The teacher, who can't be named, was relieving at a primary school in September 2011 when he either took the photos himself or accessed the photos, and sent them in an email to the man, known as Mr C, who he knew was seeking help for his sexual attraction to children as young as infants.
The teacher had described Mr C as his "soul mate" and his "best friend".
He knew Mr C had limited access to his children and had been aroused by his son, the decision said.