Article XIV of the Dordrecht Confession forbids revenge and Article XV forbids swearing; together they define what a Mennonite may not do to defend himself. The refusal to go to law has a cost that the tradition has only recently faced. Because grievance was to be settled inside the church, sexual abuse was for generations handled as sin requiring confession and forgiveness rather than crime requiring police. In 2013 Mennonite Church USA commissioned the historian Rachel Waltner Goossen to document the case of John Howard Yoder, the movement's most famous theologian and the author of The Politics of Jesus, who sexually violated dozens of women over roughly twenty-five years; her report, Defanging the Beast, was published in the Mennonite Quarterly Review in January 2015 and found that church and academic institutions had repeatedly protected him. Between 2005 and 2009 in the Manitoba Colony in Bolivia, a group of Old Colony Mennonite men sprayed an anaesthetic adapted from veterinary use through bedroom windows and raped women and girls across the colony; in August 2011 a Bolivian court convicted seven of rape and sentenced them to twenty-five years, and convicted the veterinarian who supplied the spray, who received twelve years.