TThis paper deals with designing of a system, to detect poaching activity in a forest. It is equipped with acoustic sensors that detects sound intensity above a defined threshold level and then transmits the sensor output to a computer system using a wireless module. Computer module employs digital signal processing techniques to determine whether it is a gunshot or other sound. If the computer detects a gunshot then an alarm is triggered to alert the forest security forces. The system is designed such that it is able to determine the distance between sensor position and sound source. The designed system will prove to be helpful for the forest guards to reach the crime scene at the earliest possible time. This will felicitate the capture of the poachers and even provide medical aid to the injured animal.