SIX FEDERAL agents arrived at a Milwaukee courthouse on April 18th. They intended to arrest Eduardo Flores-Ruiz, a Mexican man who had illegally re-entered the country after being deported. He was due in court that day to face domestic-violence charges. When Hannah Dugan, the judge in his case, heard the agents were after him she called off Mr Flores-Ruiz’s hearing and allegedly led him away through a jury door. After a foot chase, Mr Flores-Ruiz was taken into custody. He wasn’t the only one. On April 25th the FBI arrested Ms Dugan on two criminal charges: obstructing a federal proceeding and concealing an individual to prevent arrest. She could face up to six years in prison.