How to Prepare for a Civil Service Interview

Predict the questions from the advert

Each assessed behaviour almost always gets one question, usually phrased "Tell us about a time when…" mapped to that behaviour's descriptor. List the advertised behaviours, and prepare one strong STARR example per behaviour — plus a spare for the one or two behaviours most central to the role, in case of follow-ups.

Choose examples at the right grade: scope, autonomy and consequence matching the target grade's descriptor. Recent examples (last two or three years) land better than older ones.

Handle the strengths section differently

Expect a handful of short strengths questions — quick, forward-looking, sometimes disarmingly simple ("What role do you play in a team?"). Answer fast, honestly and with energy; one concrete flash of evidence beats a rehearsed story. Preparing means knowing which strengths the role likely assesses and warming up real memories of using them, not scripting.

Practicalities that cost marks

• Most panels score each behaviour 1–7 in the interview; a flat performance on one behaviour can undo four strong ones — allocate preparation evenly.
• Video interviews are now the default in many departments: test your setup, look at the camera, and keep notes as brief prompts, not scripts — reading is obvious and scores poorly.
• Take the pause. Structured interviews allow thinking time, and a five-second silence before a well-organised answer beats an instant ramble.
• Prepare one genuine question for the panel about the work itself — not terms and conditions.

Frequently asked questions

Related guides

• The STAR Method for Civil Service Applications (and STARR)
• Civil Service Strengths: What They Are and How They're Assessed