Explosives blasting

The invention provides a method of identifying, in an explosives blasting zone, the presence of unfired explosive elements of a group of explosive elements in the explosives blasting zone after an explosives blast has been effected, which explosives blast intended to fire all of the explosive elements of the group of explosive elements. The method includes electronically scanning the blasting zone, after the blast has been effected, to identify the presence of electronic explosive element identifiers that were present in and that identified or were capable of identifying, through such scanning before the blast, the presence of respective explosive elements of the group of explosive elements in the blasting zone, which identifiers should have been destroyed or rendered incapable of such identification by firing of the explosive elements identified by identifiers in effecting the blast.