to hit their back. You are permitted to tackle even if the opponent is not in possession of the ball. Harrow Football is generally a free-flowing game with the ball in play at all times except when it has left the field of play over a boundary line, or play has been stopped by the referee. When play has been stopped, it recommences with a specified restart (see below). The Laws of the Game Overview of the Laws The Laws of Harrow football are often framed in broad terms, which allows flexibility in their application depending on the nature of the game. There is no definitive guide and arguments over more obscure laws on the sidelines often result because of this. Players and equipment Each team consists of equal numbers of players (excluding substitutes). There is no upper limit to the number of players, although it is most common to field eleven players in inter-house and other organised matches. Competition rules may state a minimum number of players required to constitute a team (this is usually seven). There are a variety of positions in which the players are strategically placed, though these positions are not defined or required by the Laws. The positions are usually the backs also referred to as the threes on account of their number, the forwards and the wings. There are two wings on each wing to facilitate the giving of "yards". The backs pivot on the centre back depending on the position of the ball - hence the graceful alignment referred to in the Harrow Song "Yards". The forwards are often four in number and are the powerhouse which clears the way to allow the ball to be taken forward. The basic equipment players are required to wear includes a shirt (usually the colour of a Harrow School boarding house or the official Harrow School colour), shorts, socks and footwear. Players are forbidden to wear or use anything that is dangerous to themselves or another player (including jewellery). A number of players may be replaced by substitutes during the course of the game. Officials A game is ideally presided over by two umpires, whose decisions regarding facts connected with play are final. Each umpire carries a Yard Stick: a wooden stick used to mark the place from which yards are taken. Games were traditionally umpired by each House providing one umpire each. However, nowadays umpiring