St Columba's School, Brandywell, Londonderry, 1973 A search team from ‘A’ Company searched with a sniffer dog after an incident at this location. It was from this position that ‘A’ Company observed the Bogside.

The IRA became aware of this and set a booby trap for the next patrol that was due to take up a position.

Before it arrived the device was accidentally set off by the school's headmaster and the caretaker. Fortunately neither were killed, but both were injured.

The remnants of the caretaker’s clothing were located hanging in the nearby tree.

The incident provided valuable lessons to young soldiers of the battalion about movement into and out of positions such as this.