Section 20 of the Principal Act is amended by inserting after subsection (4) the following subsections:(4A) Without limiting the generality of subsection (4) , the Sheriff, by notice, may require a person on a jury list to produce a document to determine if the person is qualified for jury service.(4B) A person, without reasonable excuse, must not fail to comply with a requirement under subsection (4A) .Penalty: Fine not exceeding 30 penalty units or imprisonment for a term not exceeding 3 months.