That's not the concern.
In Singapore, the consequences of having THC in your blood or urine can be severe, even if you consumed cannabis outside the country. Under the Misuse of Drugs Act, Singapore treats a positive drug test as evidence of consumption, which is a criminal offense.
Consequences:
1. Arrest and Investigation:
If you’re subjected to a drug test and test positive for THC, you may be immediately arrested and investigated.
2. Punishment:
• A positive drug test can result in up to 10 years of imprisonment, a fine of up to SGD 20,000, or both.
• You may also be required to attend mandatory rehabilitation programs if deemed necessary.
3. Travel History Irrelevant:
Singapore enforces a zero-tolerance policy for drug use, regardless of whether the consumption occurred within or outside its borders.
4. Possible Banishment from Entry:
If you are a foreigner, you may face deportation and a permanent ban from re-entering Singapore.