The couple was travelling with their four-year-old child but after the investigation Immigration and Checkpoints Authority found three slabs of 10 Erimin-5 tablets.
Earlier Goh Kar Aip,20, pleaded guilty during the sentencing to four charges, which include three of sexual penetration of a minor and one of sexual assault by penetration.
According to Misuse of Drugs Act, if a person is found guilty of drug trafficking, the person could face a long prison term, caning, and even capital punishment.