This is a BBC interview with Group Captain Robert Lister, recorded in 1980, about his experiences as a junior officer in 20 Squadron on the North-West Frontier. He transferred there in 1935, and flew Audaxes in air control operations against Waziri tribespeople, sometimes in support of the Army, sometimes independently. He candidly notes that the 250-lb bombs were the ones which would be used against villages, but also that leaflets were invariably dropped beforehand, warning of an imminent attack.
But the clip isn't just Lister talking; it's Lister talking over his own cinefilm footage from 1935! Both from the ground and from the air, bombing and strafing Waziri villages. Also to be seen are the detonation of an improvised explosive device planted in the landing strip by the rebels, and one of the goolie chits affixed to the side of every Audax, to be used in the event of a forced landing. Fascinating stuff.
Thanks to Marc Wiggam for the lead.