Be very cautious in terms of 'what the requestee wants of you'. The advice given is sound - my point is that you must not over extend yourself - be that interpretation, opinion, whatever. Facts only.
If this is simply a description of what happen in a non-contentious situation then there are probably no issues. But in an aircraft context the CAA (or rather their enforcement chaps - usually retired plod) do not have a great reputation. What you saw and heard unless you are being asked in an 'expert role' in which case you shouldn't need advice!