[blml] Nondisclosure [SEC=UNOFFICIAL]

[Steve Willner]

> From: richard.hills at immi.gov.au
> The bidding has gone:
> WEST      NORTH     EAST      SOUTH
> Wayne     Richard   Konrad    Hashmat
> ---       1H        Pass      1S
> 
> Richard alerts Hashmat's 1S response, explaining that
> although it is a natural call, it is also a non-forcing
> call. 

> "This method over a natural 1H has not been disclosed
> on their card nor was any verbal pre-alert given of
> this response.

Was it required to be disclosed?  (It would be required in the ACBL.) If 
so, there's an infraction of L40B. I've tried repeatedly to ferret out 
how L40B violations are to be treated but so far with little agreement.

Wayne's original case differs in that the artificial overcall was a 
convention.  While no SO can forbid the natural but non-forcing 1S 
response (assuming there's nothing otherwise that makes it a 
convention), the artificial overcall is a different matter.  Ideally the 
system regulations that required advance disclosure would have specified 
what to do if disclosure was lacking.  Absent that, the TD has to find 
some way to protect the non-offending side.  At least two methods have 
been suggested in this forum.