How can I be sure my interviewer is genuine?

All interviewers who work for Ipsos MORI carry an identity card on them at all times. They will also have with them a copy of the letter sent to families in advance informing them that an interviewer from Ipsos MORI would be contacting them shortly about the survey. The identity of interviewers working for Ipsos MORI can be verified by calling the Ipsos MORI Freephone number (0808 238 5446).