Scotlandx, the legislation you refer to applies to “private conversations”. Are you sure it applies to OC meetings that are very much open?
That piece of legislation, if I recall correctly, was introduced to stop the secret recording of things such as telephone conversations and talks between individuals where one of the parties did not know of the recording.
In the case of OC meetings I am suggesting that everyone knows it is being recorded but only a majority has voted for it to be.