Section 209(a) in The Coal Mines Regulations, 2011
(a)after shots have been fired, all loose rock shall be removed from the face, and the area lying within a distance of 1.2 metres from the face shall be thoroughly cleaned or washed down with water and carefully examined for the presence of misfires or sockets and unless such precautions have been taken, the next round of shots shall not be fired; and
