Directive 2010/63/EU of the European Parliament and of the CouncilShow full title

2. The killing of animals shall be completed by one of the following methods: U.K.

(a)

confirmation of permanent cessation of the circulation;

(b)

destruction of the brain;

(c)

dislocation of the neck;

(d)

exsanguination; or

(e)

confirmation of the onset of rigor mortis.