U.K. abortion rights groups are planning large demonstrations on Saturday outside London’s Royal Courts of Justice, after a woman was controversially jailed on Monday under an 1861 law for using drugs to induce a medical abortion past legal term limits. The case has sparked outcry and calls for an overhaul of reproductive justice laws in the U.K., as well as the full decriminalization of abortion. Carla Foster, a 44-year-old mother of three, was sentenced to 28 months in custody for using a “pills by post” initiative for at-home medical abortions.