It is believed the culprits drove a vehicle between Mayday Gun Range and Capitol Varsity and through the open field to Schneider Electric.
Officers were told the timeframe of the theft is uncertain, but they had a company remove brush along the fence line in September and they would have repaired the fence if found at that time. Police were told the company is in the process of determining the value of the stolen copper but is estimated at more than $1,000.