### Clue: Format for images created by magistrate for example (1-3)
### Answer: J-PEG 
 ### Explanation: Definition: Format for images
 JP(abbrev. for "Justice of the Peace", an alternative term for a magistrate in the courts of England and Wales) + EG(abbrev. for "exemplis gratia"/for example).
Defn: Format for compressing electronic image files.