The race committe must be responsible for safety. But competitors need to sign a liability waiver.
The committee must also decide if there is too little or too much wind for racing. But there will still be people who want to go out and race.
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Not according to the RSS, the race committee are responsible for their own safety as such the skipper of the committee boat could decide he doesn't feel safe or feels unable to anchor, also taking into consideration the crews in rescue RIB's, in which case they should stay ashore. Otherwise they should run a start and it is up to the individual skippers to decide if they compete.
Spot on!
The other thing is people will insist ot trying to right their boat when they are obviously too tired to do so, and if they manage to right it they are in no condition to sail it in. When doing Safety at Hunts the brief is 'people first boats later' and it is written in to the club rules as well as the SI's that if the safety tells you you are being picked out the water then you are being picked out regardless of your protest. Your boat will be recovered later (and it can be replaced, you cannot).
There have been a nuber on contencious pullings out but with hindsight the poeple have (without exception) been thankful to the safety boat crews.