Backed by millionaire benefactors - one of whom donated the cottage - Greg Avery, his wife Natasha and ex-wife Heather James have turned their group, Stop Huntingdon Animal Cruelty (Shac), into a powerful organisation with thousands of members across the world. Their campaigns have forced high-profile City institutions to terminate profitable contracts with medical research firm Huntingdon Life Sciences, notably the resignation of its auditors Deloitte & Touche, its broker HSBC and its banks.