I can't help but be amazed at the increasing desperation of the anti-hunt campaigners. Not content with being able to "monitor" hunting from the ground in their attempts to prove that the hunt is acting outside the law, Mr Griffiths took to the air to (one assumes) gather eyewitness/video/photographic evidence from his gyro. It would be unfair too assume that he took to the air deliberately to harrass anyone on horseback.
Which brings me onto a point - if it could be proved that Mr Griffiths was, perhaps, getting his flying expenses paid by an anti-hunting organisation, would that be in contravention of the ANO and his licence privileges?