When should I call 999 about dangerous driving in Northern Ireland?

Call 999 when dangerous driving is creating an immediate risk to life or serious harm, or a serious collision/emergency is happening now.

For past incidents with no immediate danger, use PSNI’s non-emergency online reporting route or 101 as appropriate.

With PSNI or NIRSP paperwork, use the reference number on the notice and meet the deadline printed on that document. Keep copies of what you send. A fixed penalty, NIP and request for driver information are different legal steps, so do not ignore one because you intend to dispute another. For "When should I call 999 about dangerous driving in Northern Ireland?", read the notice itself before acting because the response route depends on whether it is a NIP, driver-information request, course offer or fixed penalty.