Think of it like a deliciously accurate sandwich. The bread—the police procedures, the acronyms, the way interviews are conducted—is 100% authentic. The filling—the specific characters and their crazy conspiracies—is pure imagination.
Mercurio spent years researching actual police corruption cases. He talked to real detectives and studied how internal affairs units work. That’s why the show’s lingo, like “bent coppers” and “the regs,” sounds like it was ripped from a real police file.
Ever notice those grueling, half-hour-long interview scenes? They’re based on real-life interrogation techniques used by the police. It’s that meticulous detail that tricks your brain into thinking you’re watching a documentary.
The “Chilling” Parallel to Reality
Here’s where it gets spooky. While the story isn’t true, the type of corruption it shows absolutely is. Corrupt cops, dead informants, and secret loyalties have happened in real life, from the UK’s Dirty Dozen scandal to cases in the US.
Is Line of Duty based on a true story? | The US Sun
The show isn’t about one specific person; it’s about a systemic problem. That’s why it’s so gripping—you can’t help but think, “Wait, could this actually happen?” And the answer, uncomfortably, is yes.
Think of it like the television show The Wire. That wasn’t a true story either, but it captured the feel of Baltimore’s drug war so perfectly that people assumed it was. Line of Duty does the same for British police corruption.