The Anderson case took place in Canada West from 1860 to 1861. The case dealt with whether or not to extradite an escaped slave to the United States on the charge of murder. The majority of the presiding judges who handled the case agreed that there was sufficient evidence to prove criminality of the extraditable offence. The decision was based upon the terms laid out in Article X of the Webster–Ashburton Treaty of 1842. Anderson was released on a technicality.