nullum crimen

Questions

What does nullum crimen mean?

A foundational principle dictating that a person cannot be prosecuted or punished for an act unless that specific conduct was explicitly defined as a crime by law before it was committed.

Where does nullum crimen come from?

Latin.

How to pronounce nullum crimen

1. Open the pronunciation page — Open the Speakur entry for “nullum crimen”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “nullum crimen”.
4. Repeat and practice — Say “nullum crimen” aloud, matching stress and vowels until it feels natural.