Wah, you are like the woman interviewed by ST who said that she had waited too long for the bus to arrive. She wants her bus to arrive within 5 minutes. Literally she wants her bus - t is attached to her.
Wah you are super efficient. You want the police to arrest these fellows the moment the knife draws blood? These fellows did not go home - they were hiding in a chalet in Changi. Police managed to fish them out.
Given time, the rest will surrender or the police will nap them for sure. You can bet on that.
I wonder if you submit to your boss the task he gave you before he could finish his instructions to you.
I am amazed how you misread what I wrote. You obviously have no idea how the police operate or should operate, their "technical" resources available, how technology can be used etc. Read some detective novels and you may get a better picture, I hope.
Where was it mentioned that I expected the police "to arrest these fellows the moment the knife draws blood? The fact that those arrested did not go home and the police fished them out from a chalet is no big deal. If you are impressed by basics, given your ignorance, I can understand.
You would probably be very impressed if "the rest will surrender". S'pore is a small place. If the police can't flush these assailants out, need I say more.
Reference to your last paragraph, no need to worry. I have no boss coz I have been my own boss since I started work - family business. Hahahahahahaha. Cheers, my friend.