1.   Many referrals will be dealt with by the duty officer and never allocated to a social worker.

2.   The duty officer promised to get in touch but nothing happened for two days.

3.   The unfortunate victim was wheeled directly into the major treatment area, where he was examined by the duty medical officer.

4.   They were later released after their commanders promised there would be no further incidents, said duty officer Paulino Cardoso.

5.   I shall need to check with the duty officer.

6.   He dialled, and spoke briefly to the duty officer.

7.   It was the duty officer prowling with a cup of tea in his hand.

8.   The duty officer at the Cabinet Office Briefing Room was at the centre of a web of information technology.