76. If either of the dealer’s adversaries lead out of turn, the
dealer may call the card erroneously led, or may call a suit when it
is the turn of either adversary to lead.
77. If the dealer lead out of turn, either from his own hand or
dummy, he incurs no penalty; but he may not rectify the error after
the second hand has played.
78. If any player lead out of turn and the other three follow him,
the trick is complete and the error cannot be rectified; but if only
the second, or second and third play to the false lead, their cards
may be taken back; there is no penalty against anyone except the
original offender, who, if he be one of the dealer’s adversaries, may
be penalised as provided in Laws 60 and 76.
79. In no case can a player be compelled to play a card which would
oblige him to revoke.
80. The call of an exposed card may be repeated at every trick until
such card has been played.
81. If a player called on to lead a suit have none of it, the penalty
is paid.