Redding Police are investigating a vandalism incident that happened at a Route 7 business last week.  Police say someone or a group of people caused $600 in damage at Empire Fences.  A brick was thrown through the glass window of a display shed some time between Monday evening and Wednesday morning.  The family-owned and -operated business is on the Ridgefield-Redding border. Anyone with information about the vandalism is asked to contact Redding police.