DCRO were asked by the police to investigate a 50 metre deep shaft down which it was suspected a cow had fallen. A small team attended and prepared the shaft for a descent. A gas monitor was first lowered down the shaft and it recorded low oxygen levels and also concentrations of carbon monoxide. Consequently it was deemed that a descent would be too hazardous. Blood on the rope that had been used to lower the monitor strongly indicated that the cow had indeed fallen down the shaft and due to its depth it was concluded that the fall must have been fatal.