blackshoe, on 2014-March-23, 19:45, said:
Does the later minute change anything wrt the earlier one? In particular, this example came up: LOOT of the ♣J against a 6♠ contract. The uncontested auction went 1♠-4♠-6♠. Proper leader holds ♠xxxx ♥KJxx ♦- ♣AKQxx. Declarer opts to let the ♣J remain a MPC. Proper leader leads a low club to the J, gets a diamond return, ruffs. Down 1. Was the low club lead improper? The first minute says no. The second one, well, I'm not sure. I note that Law 50E did not appear in the 1997 laws.
No. The second minute only emphasises that the reference to an Ace and the other honours is an example. The stated principle applies to any combination of card ranks in similar situations.
And the (simple) rule is this:
When offender's opponent on the lead has a choice between several logical alternatives as to which suit to lead he may not choose any particular suit from the knowledge that the offender holds a particular card (whether this card is still a penalty card or has been restored to the closed hand) and that he (for whatever reason) wanted to play this card when such play was illegal.
Once offender's opponent legally has selected to lead the suit of the penalty card he may select the rank of the card to lead from the knowledge that the penalty card must be played to that trick.
(And whenever offender's LHO leads a card in the suit of a penalty card offender's partner may select the rank of the card to play in that suit from the knowledge that the penalty card must eventually be played to that trick.)
However, once the penalty card for whatever reason ceases to be a penalty card and is restored to the offender's hand the knowledge that offender has this card is no longer authorized to his partner.
So in your case: The lead of a low club was indeed improper unless the player had no other logical alternative card to lead (absent the knowledge that partner had the
♣J)