State the proposed length of the interview e.g. 45 minutes. Explain that notes will be taken. Explain there will be opportunity for the candidate to ask questions at the end of the interview. Ask open questions. Do not 'lead' the candidate.
Ensure answers are specific.
Ask for specific examples if the candidate does not answer the question. Ask the same core questions of each candidate. Supplementary questions related to individual responses should be asked if further elaboration is required. Check the candidate's understanding of the job and conditions of appointment. State when a recruitment decision is likely.