North-South volunteered some helpful information after the end of the auction, but were unsure what exactly 3D showed; they indicated that South could puppet to 2D and then pass or bid 3D forcing.
East led the two of spades, dummy playing the seven, and West (I) thinking for perhaps twenty seconds before playing the nine. North won with the ten and played the king of diamonds to East's ace, South's two and West's ten (we had not agreed Smith Peters and this was, in theory, normal count if anything). East continued with the four of spades to the jack, king and ace. Now declarer led a diamond to the four of hearts, playing normal attitude and normal count, the queen of diamonds and the seven of diamonds.
Now declarer led the king of clubs from dummy and West, after a significant BIT - perhaps 30 seconds - ducked. Now declarer played a heart to the jack and East won with the queen. East exited with a club, and, at this point, "North (briefly) threw his remaining cards face-down on the table" (the exact statement of my partner, East) and then picked them up, in a manner that suggested to the table that East had used the BIT by West to find her exit.
West won, perforce, with the ace of clubs, cashed the jack of diamonds, and played a spade. East was a little discombobulated by North's actions and won, unnecessarily, with the queen (the six would have sufficed to win the trick and beat the contract two) and declarer claimed one off. This was almost average (12-10 to North-South). Two off would have been 5-17. Making would have been 19-3. West suggested to North that he call the director over the BIT, believing the club exit was the only LA for East, but North declined to do so, and the result of -1 was recorded as played.
How would you rule if you had been called by either side at any stage?

Help

P - P - 1C - P
1D - P - 1NT - P
3D - P - 3NT - All Pass