Following a year in the cross-hairs of state officials critical of its controversial electric-shock methods, the Judge Rotenberg Educational Center in Canton is on the defensive again, this time fighting off a civil lawsuit in Norfolk Superior Court that has quickly attracted national and international media coverage. Andre McCollins, now 26, and his mother, Cheryl McCollins of Brooklyn, N.Y., is the plaintiff in the negligence lawsuit against the Rotenberg Center and three of its psychologists. The lawsuit says that in 2002 Andre received 30 electric shocks over a seven-hour period while he was also restrained face-down.