Internal Affairs Report on Stoughton Cops Led to Chief’s Call to FBI

Before Stoughton Police Sgt. Robert Kuhn took the stand on Thursday to testify against a fellow cop he had called a longtime friend and made a bombshell remark that became part of the official record on cross-examination. Kuhn was among the four former Stoughton PD employees who not only worked with Matthew Farwell, the 40-year-old disgraced detective currently on trial for allegedly murdering Sandra Birchmore, a 23-year-old pregnant teacher s aide and her unborn child, but who knew the victim from the time she was a child. Birchmore was a Stoughton Police Explorer, a mock mentoring academy for troubled kids, and Kuhn and other Stoughton police officials remembered her on the stand as kind, special needs, and caring. Before he took his seat in the elevated witness box to the left of Farwell, flanked by his two female federal public defenders, usually staring straight ahead, Kuhn made a remark outside Courtroom 11 at Boston s federal courthouse that made its way back to his