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Five pupils have been suspended from St Andrew's College in Christchurch after eating a cake laced with cannabis oil.
The college was informed by the parents of one of the pupils who became ill after eating the cake.
St Andrew's secondary school principal Sarah Long said the five day pupils - boys and girls - had stored a cake containing cannabis at the school before eating it after school.
The cake had been supplied by someone not associated with St Andrew's, Ms Long told The Press newspaper.
The pupils were suspended for a day last Friday before the matter went to a school board of governors meeting at the weekend.
Ms Long said two pupils were suspended for a further period after the meeting. One returned to school yesterday and the other was due back today.
She said the pupils would have to undergo monthly drug tests for six months and risked being excluded if they got into serious trouble again.
Four boys were expelled from Nelson College last month after they were caught growing half-a-dozen cannabis seedlings on a hillside near their boarding lodge.
Six other boarders were allowed to return to the college's day school and another boy remains suspended ahead of a board of trustees meeting in two weeks.
- NZPA
