By 2 December 2011, the Animal Welfare Act 2006 was already in force; it defines animals like goats as “protected animals” if they are commonly domesticated in the British Islands, and it makes it an offence to cause unnecessary suffering to a protected animal. Throwing a live goat off a tower would plainly cause unnecessary suffering, so the statement is correct. (legislation.gov.uk) Sources: legislation.gov.uk — Animal Welfare Act 2006; legislation.gov.uk — Explanatory Notes to the Animal Welfare Act 2006.