A school resource officer’s interpretation of a boy’s body language was an acceptable piece of testimony in the trial of the boy’s relative, the Colorado Supreme Court decided by 6-1 on Monday. “Certain types of body language, like the myriad hand signals of a Colorado Rockies third base coach or the gestures of the conductor of the Colorado Symphony, may lie outside an ordinary person’s knowledge and experience,” wrote Justice Maria E. Berkenkotter in the majority opinion. “Other types of body language, however, are very familiar to ordinary people because everyday social interactions present countless opportunities to observe body language and ascribe meaning to it.”