A 17-year-old boy will appear in court facing arson charges after police say he set light to an office at Cowra High before students returned Sunday. Classes were due to restart for the new week when smoke was spotted. Fire crews put out the fire promptly. Police and fire investigators spent hours at the site. The school kept closed for the day. Authorities say no one was hurt. Detectives are still examining the cause. The teen is expected to plead innocent. Community members shared concern over the incident. The fire alarm triggered shortly after the blaze began. Local fire services arrived within minutes. The investigation will establish whether additional charges are warranted. The court appearance is scheduled for the near future. If convicted, the boy could face substantial penalties. The incident has sparked debate about school security.