A year nine student at an exclusive Brisbane catholic school has been busted with a quantity of drugs.

Police raided the St Laurence's student's locker on Wednesday last week and discovered "small" amount of cannabis.

A year nine student at St Laurence's was busted with a quantity of cannabis. Credit:Rohan Thomson

Fairfax Media has been told the teen had enough drugs to share and received a one-day suspension after the cannabis was discovered in his locker.

But the school refused to respond to Fairfax Media's questions, including whether a one-day suspension was adequate in this case.