9. Section 2(1) of the Act of 1998 is amended—

(a) by the substitution of the following definition for the definition of “child”:

“ ‘child’ means a person under the age of 18 years;”,

and

(b) by the substitution of the following paragraph for paragraph (a) of the definition of “child pornography”:

“(a) any visual representation—

(i) that shows, or in the case of a document relates to, a person who is or is depicted as being a child and who is engaged in or is depicted as being engaged in real or simulated sexually explicit activity,

(ii) that shows, or in the case of a document relates to, a person who is or is depicted as being a child and who is or is depicted as witnessing any such activity by any person or persons, or

(iii) that shows, for a sexual purpose, the genital or anal region of a child or of a person depicted as being a child,”.