Continuity mistake: When Miss Fisher is on her knees by the burial site of her sister, the ribbon in her possession is quite different from the one seen at the beginning of the series, which was worn out, with no hint of the shape and color of the blue one shown in this episode and the previous.
Continuity mistake: When Dot is holding Hugh at gunpoint, Hugo Johnstone-Burt is holding a pencil between his thumb and middle finger only when shot from the front with Dot's hands in the foreground. He never has it in the angle behind him, or wider shots. (00:34:40)
Continuity mistake: When Miss Fisher gets face to face with Foyle for the first time, her arm goes from straight to slightly bent at the first cut after his mocking applause; in the reverse shot the arm is still straight and only then begins to curve. (00:39:30)
Continuity mistake: When Miss Fisher asks Dot to help her get out of jail, she is holding on to the bars in the close-up, but not in the wider angle. (00:34:10)
Answer: Louisa's watch was broken during the struggle to get away from her attacker.
Bishop73