We are alarmed by the rapid increase in drone incidents over the last three years, as confirmed by HMPPS’s own data. The current reliance on staff sightings to detect drones, as noted in the HMPPS Annual Digest, is insufficient and likely underestimates the true scale of the problem. The capability of drones to deliver not only large quantities of drugs and mobile phones, but also to deliver weapons, with the potential for the future delivery of firearms and explosives, is an extremely serious threat to the safety and security of prisons. (Conclusion, Paragraph 102)