For the purposes of this Part, a specimen is lawfully imported if, and only if, it was imported and:
(a) in a case where the specimen was imported after the commencement of this Part--it was not imported in contravention of this Part; or
(b) in a case where the specimen was imported when the Wildlife Protection (Regulation of Exports and Imports) Act 1982 was in force--it was not imported in contravention of that Act; or
(c) in a case where the specimen was imported before the commencement of the Wildlife Protection (Regulation of Exports and Imports) Act 1982 --it was not imported in contravention of:
(i) the Customs (Endangered Species) Regulations; or
(ii) the Customs (Prohibited Imports) Regulations.