4 Unnecessary suffering
(1)A person commits an offence if—
(a)an act of his, or a failure of his to act, causes an animal to suffer,
(b)he knew, or ought reasonably to have known, that the act, or failure to act, would have that effect or be likely to do so,
(2)A person commits an offence if—
(b)an act, or failure to act, of another person causes the animal to suffer,
(c)he permitted that to happen or failed to take such steps (whether by way of supervising the other person or otherwise) as were reasonable in all the circumstances to prevent that happening, and
(d)the suffering is unnecessary.
(3)The considerations to which it is relevant to have regard when determining for the purposes of this section whether suffering is unnecessary include—
(a)whether the suffering could reasonably have been avoided or reduced; (4)Nothing in this section applies to the destruction of an animal in an appropriate and humane manner.