Anti-drugs officers have discovered children as young as 11 are using 'ice' and that abuse of the drug among the young has doubled in just 12 months.
The revelations have prompted officials to drop the age limit of pupils targeted in drug education campaigns to just 10 years old and are considering taking it to even younger children.
Commissioner for Narcotics Clarie Lo Ku Ka-lee said the average age of under-21 drug abusers had dropped from 18 to 17.5 and there were cases involving children aged 11 and 12 taking both hard and soft drugs.
'These young people are often from single-parent families or lack any parental care. There are also cases in which they are under the influence of their peers,' Mrs Lo said.
Mrs Lo said her officers would be designing anti-drug talks for primary five pupils similar to those given to secondary and primary six children.
Mrs Lo said her office would closely follow drug-use trends to see if it was necessary to conduct talks with younger pupils.