Chris Walker (’06) and Shani Moore (’07) worked with the ACLU Immigrants’ Rights Project to help develop a toolkit for legal observers as part of the ACLU’s Vigilante Watch project. In the past several years, anti-immigrant vigilante activity has escalated at the United States–Mexico border. Immigrants’ rights groups responded by training and sending legal observers to the border; observers’ notes then form the basis for further advocacy work. Walker and Moore developed detailed legal memoranda about border law governing the behavior of migrants and vigilantes. In addition, they also visited the border themselves and wrote a compelling editorial piece about their observations.