I know that in SG you get the death penalty if you are found in possession of "illegal" drugs, regardless of whether you intended to traffick or not.

However, I was thinking of a scenario the other day.

What would happen if you checked in to a hotel and then a day or two later you happened to find a few small bags of cocaine under the mattress of your bed?

How can you prove they are NOT yours? In which case, should you report it to the Police or not?

How is "possession" handled in this instance?