Josephine Elizabeth Butler was an English feminist and social reformer in the Victorian era. She campaigned for women's suffrage, the right of women to better education, the end of coverture in British law, the abolition of child prostitution, and an end to human trafficking of young women and children into European prostitution.

The Contagious Diseases Acts were originally passed by the Parliament of the United Kingdom in 1864, with alterations and additions made in 1866 and 1869. In 1862, a committee had been established to inquire into venereal disease in the armed forces. On the committee's recommendation the first Contagious Diseases Act was passed. The legislation allowed police officers to arrest women suspected of being prostitutes in certain ports and army towns. Since there was no set definition of prostitution within the Act, the question was left to the police officer’s discretion, and women could be arrested even if there was no actual evidence of prostitution. The women were then subjected to compulsory physical examinations for venereal disease. If a woman was declared to be infected, she would be confined in what was known as a lock hospital until she recovered or her sentence was completed. Men suspected of frequenting prostitutes were not subjected to the same treatment of compulsory checks and confinement. The law was initially aimed at working-class women in towns near military bases, due to the concern that sexually transmitted infections were hampering Britain’s forces. The original act only applied to a few selected naval ports and army towns, but by 1869 the acts had been extended to cover eighteen "subjected districts".