The journalist investigated for a tweet

The police investigation of Allison Pearson should be a watershed moment.

Franz Kafka’s The Trial opens with the novel’s protagonist, Josef K., being arrested early in the morning by two officers of the law. When he asks them to explain their reasons, one of the men tells him: “That’s something we’re not allowed to tell you. Go into your room and wait there. Proceedings are underway and you’ll learn about everything all in go…