Apart from definitions of basic rules and procedures, a large part of the Laws deals with handling of irregularities that may occur at the table. As such, the Laws are primarily used as a reference book for tournament directors rather than by ordinary players (although they are expected to get acquainted with basic procedures and principles). After attention is drawn to an irregularity (which may be done by any player except by the dummy during play) the tournament director should be summoned immediately by any player and the director may impose one or more of the following rectifications in order to restore equity to a side that has been damaged by the irregularity: