Have you seen a Drone Defence warning sign?

Drone Defence offers information about each NoDroneZone to inform drone operators about the reasons behind the flight restrictions.

To find out more information about each No Drone Zone click on the link and download the Drone Information Notice (DIN).  This data will be shared with the CAA and other organisations promoting the safe use of drones.


As of 0001hrs 1 May 2016 HMP Ranby near Retford, DN22 8EU is designated as a No Drone Zone until further notice. This is a secure facility so drone use is not permitted. The restriction is from the Surface to 400ft (121m) AGL. For more information including GPS coordinates please download the attached Drone Information Notice (DIN).

Prison DIN



Drones Sold in 2017


Drones in US by 2020


Commercial Drones by 2018


Annual Growth Rate

Drone Detection

To give early warning and time to send out an alert

Drone Tracking

To understand if the drone is flying into your airspace

Drone Identification

To give you the info you need to respond in time

Drone Defeat

To defeat the drone at range before it is a threat