May McGee was a 27-year-old mother of four, including twins, at the time of the case. McGee's second and third pregnancies were complicated by severe cerebral thrombosis. Also during her pregnancies she suffered from a stroke and temporary paralysis. Her condition was such that she was advised by her physician that if she would become pregnant again her life would be endangered. She was then instructed to use a diaphragm and spermicidal jelly that was prescribed to her. However, section 17 of the Criminal Law Amendment Act 1935 prohibited the importation of these devices and they were seized by customs. McGee and her husband Shay decided to challenge the law.