‘I am now under confinement in this place for debt; but if you obtain […] a condition from the judge that what I reveal shall not criminate myself, I will make discoveries that shall confound that same Marquis […].’

In Germany, I had heard little of this terrible gang, and I had paid no greater heed to the stories related once or twice about them in Carlsruhe than one does to tales about ogres. But here in their very haunts, I learnt the full amount of the terror they inspired. No one would be legally responsible for any evidence criminating the murderer.

Criminate

Meaning

Verb