Source:
https://scmp.com/article/626386/girl-13-arrested-border-ketamine

Girl, 13, arrested at border with ketamine

A 13-year-old girl was arrested returning to the city at Lok Ma Chau checkpoint early yesterday with party drugs worth HK$1,800. Customs officers found 2 grams of ketamine concealed in a rolled yuan banknote in her purse. The teenager, who was travelling alone, also had 7 grams in her underwear and 11 Erimin-5 (nimetazepam, a tranquilliser) tablets in her boots. It was the second such case involving a teenager this week.