Thanks for the help and just to make things clear.
This chap has over the last most recent 3 incidents driven up from his farm house to hurl abuse, swearing and general very aggressive manner, and then followed the group down the road to his farm turn off.
When I was ridding during the day earlier this year, I spoke to the man politely, explained what we do, why we ride here and that we would be using bright lights across his land probably once a month. I know I didn’t need to do this however I have done my utmost to avoid confrontation. He was still very aggressive but at least I tried and he seemed to accept my right to use this bridleway during that conversation.
I could just not use this trail but I have genuine worries for the safety of other mtb’ers.
Spoke to police and they are not interested so going to try ROW people.
Thanks folks and cheers Nick.