The Sins of the Father - S4-E9
Factual error: A character is revealed as having been hypnotised into committing murder against their will. This is not possible. (00:05:20)

The Sins of the Father - S4-E9
Factual error: A character is revealed as having been hypnotised into committing murder against their will. This is not possible. (00:05:20)
The Curse of the Aesthetic - S8-E8
Continuity mistake: When the nanny is found dead, the ball of wool in the bag is yellow but later on when Father Brown picks up the wool out of the bag it is grey.
Factual error: A character is referred to in German as a she-devil, which is given as "sie teufel." This is German for the two words "she" and "devil" but not for the word "she-devil", which is "Weibsteufel." Or just "Teufelin." (00:32:15 - 00:33:20)