As for Section 10.1, I've read it far more times than I would like recently, and I'm still not sure what it means in practical terms. Interference is such a vague term that it could be applied to just about anything, and so I shall provide a range of possible examples from reasonable to ridiculous. In all cases, I don't know whether the 'use' of Section 10.1 would stand up or not - you wouldn't know until you tried, but it _would_ cause a headache for the BCA while they tried to work it out...
1.) The Council of Eastern Caving Clubs, which due to historical anomalies is comprised primarily of younger cavers, decides to bar over-50s from caves in its region as it believes that over-50s are clearly incapable and incompetent and will cause rescues and conservation damage. Over-50 members from across the UK object, proposing a motion at the BCA AGM that the BCA should tell the CECC to rescind their policy. Section 10.1, as a constitutional clause, is invoked to override the member's complaints and prevent the BCA from 'interfering'.
2.) The BCA win the ongoing legal case, and CROW is determined to apply to caving. The Shropshire Caving Association refuses to accept the verdict, and orders a new set of heavily reinforced gates. The BCA indicates that they will not fund the gates; however, Section 10.1 is invoked to prevent 'interference' and the BCA pays the SCA for the new gates on these caves.
3.) The Council of Western Caving Clubs decides to ban all anchor placement in its region for conservation reasons. A group of cave diggers in the region, exploring a vertical pothole, have been placing anchors and the cave police have been harassing them and barring them from gaining cave keys in their region. They appeal to the BCA, but Section 10.1 is invoked to prevent the BCA investigating.
4.) The BCA Exec decide that they will, henceforth, be the only authority on cave science, and begin a campaign of fear, uncertainty and doubt about the qualifications of members of the British Science in Caves Group. They invoke Section 10.1 to prevent 'interference'.
5.) A club, the North Essex Caving Club, controls access to a large cave. The relevant regional council, the Silurian Caving Council, have been sneaking anchor installers into the cave and filling the cave with resin anchors against the wishes of the club - anchors paid for and supplied by the BCA. The North Essex Caving Club appeals to the BCA to help them, and to stop supplying the Silurian Caving Council with resin anchors, but they invoke Section 10.1 preventing the BCA from becoming involved and ensuring the supply of anchors.
6.) The BCA Exec, as a money-making side venture, start running 'cave diving' courses using standard scuba kit and a few bits of pipe in a swimming pool. All references to the Cave Underwater-Swimming Group are removed from the BCA website. The CUSG use Section 10.1 to stop the BCA running dodgy cave diving courses.
7.) The Council of Eastern Caving Clubs, in response to a perceived slight from the Council of Western Caving Clubs, creates a blacklist of cavers from known CECC clubs and refuses to grant them permits. The clubs object to the BCA, but Section 10.1 is invoked to prevent the investigation.
8.) A BCA individual member votes to ban all members of the BCA from gating caves, and to restrict funding (but not expel the members) from all gating projects. The regional councils invoke Section 10.1 to try and override the member's vote and continue receiving BCA funds for their gating projects.
9.) The Dorset and Swanage Underground Council retreats entirely underground, electing their chair Glorious Leader for Life, holding all meetings underground in secret, and enacting a compulsory 'conservation fee' of ?5 per visit for all the caves and mines they control access to. Soon after, the Glorious Leader for Life is seen being paraded around in a gold-lined palanquin, while their minions publish documents explaining how important all these fees are for 'conservation'. Section 10.1 is used to prevent 'interference'.
I'd love to see what people _actually_ think Section 10.1 will be used for, because honestly it's so vague I think you could try and it use for anything but would be hard-pushed to make it stick to anything.
Is investigating a situation 'interference'?
Is talking to people 'interference'?
Is allowing a group to join the BCA 'interference' if their interests have some overlap with another groups (e.g. does granting a new access controlling body membership interfere with the autonomy of the relevant regional council?)?
Is funding or not funding projects 'interference'? Are the BCA obliged to provide the regions with funding?