In a leaflet distributed by the UK authorities, the police tell citizens to be vigilant on anyone using the dark web. The authorities fear that terrorists and sympathizers could access darknet for propaganda, to smuggle weapons, and to raise funds. The Dutch police confirmed that the situation in the country is very worrisome, according to a national threat assessment report published by the Dutch police on June 1, the trade of weapons on the darknet is increased. Some governments created specific units to infiltrate communities and prevent abuses.”]
Source: http://securityaffairs.co/wordpress/60798/terrorism/darkweb-terrorism.html