See if you can spot the "clue"

A German bank is tagged as "Germany's Dumbest Bank", see if you can spot the clue which may have tipped off any reasonable person long before any problems cropped up:

German prosecutors and police today raided the Frankfurt headquarters of state-owned bank KfW, looking into a case suspected criminal breach of trust.

Prosecutors said they had opened an investigation into whether the bank's executives acted criminally in allowing KfW to transfer €319m (£251m) to US investment bank Lehman Brothers on the day it went bankrupt.