To be honest i disagree with alot of comments that have been made on this subject.

Im sure if you see the child in difficulty in front of you,then quite rightly most would go in.
BUT
These community cops have turned up on scene to a huge lake,with a body somewhere underneath,where would you start?????Surely its very similar to finding a needle in a haystack???

I personally am a paramedic,if i would have turned up i dont think i would have gone in,cos it is such a vast area to cover underwater,you dont know whats at the bottom,weeds etc,plus your gunna be clothed,has anyone tried swimming in clothes???It is not easy.This water is very deep.

So if it was an ambulance crew that turned up first and neither myself or my crewmate jumped in,would you be just as annoyed at us for not going in???