What happens if I do not identify the driver on a NIP in Northern Ireland?

This is why ignoring a NIP is usually a bad strategy even if you intend to dispute the original speeding or red-light allegation.

The driver-information requirement and the underlying traffic offence are separate issues. You can comply with the identification requirement and still later contest the substantive allegation through the appropriate process.

Check household diaries, insurance records, work logs or other legitimate information if several people could have used the vehicle. Keep a record of reasonable enquiries if identification is genuinely difficult.

Police fixed penalties and camera notices are not private debts. Read the response deadline carefully, comply with any separate legal requirement to identify the driver, and use the court-hearing route if you genuinely dispute an allegation that cannot be resolved administratively.