It is reported that school principals in the Western Cape are resorting to testing pupils for drugs because drug abuse has become so rife.
Pupils between the ages of 13 and 16 are apparently the worst offenders.
In some schools, breathalysers are used to test if pupils have been drinking in class or during special school events.
CapeTalk's John Maytham spoke to Paddy Attwell, the director of communications at the Western Cape education department.
Listen to the full conversation on The John Maytham Show:
Attwell said in terms of the Western Cape Provincial Schools Education Act, principals or the school governing body can conduct their own drug testing if they suspect presence of illegal drugs or that learners are under the influence.