791. Explosives for killing horses at stratified ironstone, shale or fireclay mines.

None of the provisions set out above as to explosives at stratified ironstone, shale or fireclay mines (not being safety-lamp mines)1 except those relating to the storage of explosives2 applies to apparatus and explosive cartridges approved by the Health and Safety Executive3 for use in mines for destroying horses4. Subject to a power of exemption5, such apparatus or cartridges must not be taken or used below ground for any other purpose6, and the manager must ensure that such apparatus is kept and used by a competent person appointed by him