MoM should delegate the work to SPF, and SPF should set up a task force like Anti-Vice and raid Geylang, Massage Parlours, and MRT and public transport.What's the point of stating a duration limit, when the officials don't even bother tracking those who flout the rules and overstay? Might as well issue a 'freehold' permanent visit pass!
It's not difficult to fish out illegal immigrants or overstayers. Those Chinks or Nehs who play music or dramas on their speaker phone, immediately ask for the IDs.