Last month 16 people were arrested on accusations of planning or attempting to travel to the Syria or returning from its battlefields and training camps.
The soaring arrest figures - which compare with just 24 Syria-related terror arrests in 2013 - are evidence of an increased focus on the terror threat posed by a number of young Britons gaining paramilitary training and battlefield experience overseas.
More top news
A company has modified a new game allowing people to play 'Slave Tetris' after it was deluged with complaints online.
People will not stand for the fact we are "letting people die and seeing dead bodies on the beaches", says leading British cleric.
Weather set to stay cool and cloudy tomorrow