Meaning
The power of the police and the courts to pursue offenders anywhere, however far or for however long they run. The phrase treats the law as a body whose arm can reach across borders and decades, and it is used both as a warning to the guilty and as reassurance to everyone else. Often half-jocular in modern use; crime reporters reach for it in cold-case and extradition stories. Regional use: General English.
Origin
The image is older than the police. 'Kings have long arms' (sometimes 'long hands') was listed as an English proverb as early as 1539, meaning that royal authority reaches wherever it pleases. The transfer from the crown's arm to the law's came later, and the American Heritage Dictionary of Idioms dates the modern wording, now often used lightly, to 1908. Cambridge marks the phrase literary and defines it simply as the police, with the classic warning 'you can't escape the long arm of the law'; dictionaries also record the variant 'the strong arm of the law', where the metaphor brushes against strong-arm tactics. In modern crime reporting the phrase does double duty, reassuring readers that fugitives are catchable and framing cold-case convictions and decades-later extraditions as the arm finally closing.
Research Sources
References used to check this entry’s meaning, history, or documented forms.
Variants
- escape the long arm of the law
- long arm of the law
- the strong arm of the law
Usage Examples
- He changed his name twice and crossed three borders, but the long arm of the law caught up with him in a Lisbon suburb nineteen years later.
- You can run, the sergeant told the apprentice thief, but you cannot outrun the long arm of the law.
- The documentary closed with a montage of cold-case arrests, narrated over the inevitable phrase about the long arm of the law.