Subtitled "wargame rules for a civil disturbance in a mythical modern big city". Excerpts from the rulebook: "These rules are designed to simulate the events and actions of a major public disturbance of the type seen during the post-war years in the Western world. The concept has been inspired (if such is the word) by the continual media coverage of such regrettable events throughout the world." "Fundamental to this game is a sort of 'Theory of Riots; which is that a riot is one, violent, expression of deep-rooted unrest by members of the civil population. The causes of riots are not the subject of these rules, merely the events following their start." "It is intended for use with 25mm or OO/HO scale models, with a crowd of 150 or so figures and 40-50 police/security forces; there is no reason why the game should not be played using 1/300 scale models, or even 1/32! (provided of course that the other scales are changed as appropriate)." "The preferred way of playing the game is with one or more umpires and a group of say, 4-6 players (but there are other ways of setting up the game - see later).The players all represent the Security Forces and are given a copy of the SF Rules." "In practice, depending on umpire experience, we have found you need one umpire for every 3-4 players - there is quite a lot to do." "This game can also be played quite successfully as a solo game. To be most successful played solo it needs plenty of time to work through all the actions." This set of rules was originally released in 1983. A revised edition was released in 2001.