Leg theory MCC subsequently revised the Laws of Cricket to prevent the use of "fast leg theory" tactics in future, also limiting the traditional tactic. Leg theory Leg theory is a bowling tactic in the sport of cricket. The term "leg theory" is somewhat archaic and seldom used any longer, but the basic tactic remains a play in modern cricket. Simply put, leg theory involves concentrating the bowling attack at or near the line of leg stump. This may or may not be accompanied by a concentration of fielders on the leg side. The line of attack aims to cramp the batsman,
Mid-Canada Line which scattered off the troposphere for long-distance communications. The southernmost site along the eastern portion of the line, at Cape Henrietta Maria on Hudson Bay, was used as the main communications point, and three additional repeater stations transferred data from the line southward to the NORAD command center in North Bay, Ontario. The easternmost station at Hopedale, Labrador was co-located with an existing Pinetree Line station in order to save construction costs. All aircraft transiting the line would have to file a flight plan through the "Mid Identification Zone", or "MIDIZ", centred on the fence. The plans also called for