Snape's Mission

[Haggridd]

No: HPFGUIDX 15823

Irrespective of the relative desirability of polyjuice potion as a 
plot device, I think that it is plausible that Crouch, Jr. had stocks 
of the precursors of the potion ready for the final step: in his
case, 
the addition of Mad-Eye's hair.  Could Dumbledore and Snape not make 
use of these prepared stocks in order to quickly turn Snape into 
Crouch, Jr.?  If anyone has a plot device that can get around 
Voldemort's ability to detect any lies, I would happily accept
another mechanism for Snape's mission

Haggridd