EDISON — Charles Pivnichny of Plainfield, a 2010 graduate of The Wardlaw-Hartridge School in Edison, returned to his alma mater to share a PowerPoint presentation with Barbara Drake’s forensics class about techniques for investigating arson on Feb. 25. Pivnichny, the current president of the Watchung Fire Department, provided the students with an overview of basic causes and indicators of arson. (Photo courtesy of Wardlaw-Hartridge)
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