[Avodah] lifnei iver/kanaus

[Daniel Israel]

On Tue, 11 Sep 2007 09:30:07 -0600 Doron Beckerman 
<beck072 at gmail.com> wrote:
>That one must make quick calculations is evidenced by the fact 
that if he
>can save the Nirdaf B;Echad MeiEivarav of the Rodef, and he does 
not do 
>so, killing him instead, he is a Shofech Damim.

I'm not sure how to understand this.  I would assume that this 
refers to someone who made the cheshbon that echad m'eivarav would 
work but killed anyway.  If he made the cheshbon that killing was 
necessary, will the beis din really second guess this?  What if he 
claims that he didn't have sufficient time to do the cheshbon, will 
beis din accept this?  (I haven't seen the halacha inside, so I 
don't know.)

--
Daniel M. Israel
dmi1 at cornell.edu