How can I be sure that the interviewer or nurse who has contacted me is genuine?

All interviewers and nurses who work for NatCen Social Research or Kantar Public carry an identity card. Interviewers will have a copy of the letter that was sent to you in advance. Nurses will have a copy of the booklet left with you are the end of your interview. You can verify the identity of your interviewer or nurse by calling NatCen Social Research, on Freephone 0800 652 4574.