17. Section 28 of the Principal Act is amended—
(a) by omitting from paragraph (1) (a) “or” (last occurring);
(b) by omitting paragraph (1) (b) and substituting the following paragraphs:
“(b) the dog is not restrained in accordance with subsection 21 (4); or
(c) in the case of a dangerous dog—the dog is not wearing a device in accordance with section 24A.”; and
(c) by omitting subsection (5) and substituting the following subsection:
“(5) Where an inspector has reasonable cause to believe that a dog that has attacked a person, a domestic animal, a farm-animal or wildlife is on premises occupied by the keeper of the dog, the inspector may—
(a) require the keeper to produce the dog for inspection; and
(b) in the case of a dog the inspector believes on reasonable grounds not to be registered—seize the dog.”.