[Scythian]

There are serious gaps in Home Affairs Ministry

Those with medical condition can also be granted citizenship

Even Mad and jobless can be given Citizenship

.
No one will believe MHA and SPF cannot interpret Interpol's website 

"Quote
"According to Interpol’s website, a Red Notice is a request to law enforcement worldwide to locate and provisionally arrest a person pending extradition, surrender, or similar legal action. A Red Notice is not an international arrest warrant.""
Unquote"

Singapore herself has unknowingly granted PR and staying to the wanted criminal without even checking Interpol's Red Notice.

if Singapore doesn't know then how would China know the whereabouts of the fugitive?

This can not be China's fault, maybe it's Interpol's fault for overlooking Singapore authority.

Sad days ahead