I've had three NIPS now and on each occasion I have telephoned them and and asked what the hell it was about. They told me to fill out the form as requested.

On two occassions I heard nothing else and the third I was invited down to the police station to discuss the allegation. The interview was taped and I helped the police out with their inquiries. No charges were brought against me in relation to the allleged ofence.

I really don't recommend fibbing though so remember to be honest