This video from England says about itself:
15 November 2016
Dozens of activists wore handcuffs and carried signs in a demonstration against the European Custody and Detention Summit outside the Tower of London, in the British capital on Tuesday. Security companies, prison builders and arms companies were meeting at the summit to discuss new security techniques.
From daily The Morning Star in Britain:
Prison firms summit targeted by protesters
Wednesday 16th November 2016
Organisers of the demo Global Justice Now said the summit’s agenda exposed the commercial motivations of the companies involved which profit from militarised borders and detention centres across the world.
Migration campaigner at Global Justice Now Aisha Dodwell said: “There’s such an ocean of human misery and suffering involved in militarised borders, detention centres and prisons, and it’s obscene that a private sector is not only making billions of pounds out of that misery, but actively looking for ways to expand its markets.”