We had a big, contentious project up for lengthy discussion. One cantankerous person stated up front he intended to record it as he believed was his right (as usual, no one knew the legislation so didn’t press back) and disclosing that it was so he could ponder the details discussed and respond in depth later based precisely on what was said by attending experts. Seemed reasonable and he did so without objection. So I think in most cases if you air your intentions and provide reasonable reasons you would probably get away with it. But having done so you might need to prove everyone’s trust for not misusing it was warranted. As with many things, this too can be a bit of a storm in a tea cup issue and soon forgotten about.