http://www.legislation.gov.uk/apni/1971/18/introductionIndecent Advertisements (Amendment) Act (Northern Ireland) 1971An Act to amend the Indecent Advertisements Act 1889.texttext/xmlenStatute Law Database2011-05-262006-01-01Indecent Advertisements (Amendment) Act (Northern Ireland) 19711971 Chapter 18An Act to amend the Indecent Advertisements Act 1889.[8th June 1971]