Dead Man's Footsteps

than usual. ‘Any chance of a quiet chat later?’
    Grace nodded at his friend. ‘Of course.’
    Branson’s greeting prompted a few other heads to be raised as well.
    ‘Well, here comes God!’ said Norman Potting, doffing a non-existent hat. ‘May I be the first to proffer my congratulations on your elevation to the brass!’ he said.
    ‘Thank you, Norman, but there’s nothing very special about brass.’
    ‘Well, that’s where you are wrong, Roy,’ Potting retorted. ‘A lot of metals rust, you see. But brass doesn’t. It corrodes.’ He beamed with pride as if he had just delivered the complete, final and incontrovertible Theory of Everything.
    Bella, who very much disliked Potting, rounded on him, her fingers hovering above the Maltesers like the talons of a bird of prey. ‘That’s just semantics, Norman. Rust, corrosion, what’s the difference?’
    ‘Quite a lot actually,’ Potting said.
    ‘Perhaps you should have been a metallurgist instead of a policeman,’ she said, and popped another Malteser in her mouth.
    Grace sat down in the one empty seat, at the end of the work station between Potting and Bella, and immediately crinkled his nose at the stale reek of pipe tobacco on the man.
    Bella turned to Grace. ‘Congratulations, Roy. Very well deserved.’
    The Detective Superintendent spent some moments accepting and acknowledging congratulations from the rest of the team, then laid his policy book and agenda for the meeting out in front of him.
    ‘Right. This is the second briefing of Operation Dingo , the investigation into the suspected murder of an unidentified female, conducted on day three following the discovery of her remains.’
    For some minutes he summarized the report of theforensic archaeologist. Then he read out the key points from Theobald’s lengthy assessment. Death by strangulation, evidenced by the woman’s broken hyoid, was a possibility. Forensic tests for toxins were being carried out from hair samples recovered. There were no other signs of injury to the skeleton, such as breakages, or cuts indicating knife wounds.
    Grace paused to drink some water and noticed that Norman Potting was looking very smug.
    ‘OK, Resourcing . In view of the estimated time period of the incident I am not looking to expand the inquiry team at this stage.’ He went on through the various headings. Meeting cycles : he announced there would be the usual daily 8.30 a.m. and 6.30 p.m. briefings. He reported that the HOLMES computer team had been up and running since Friday night. He read out the list under the heading Investigative Strategies , which included Communications/Media , emphasizing the need for press coverage, and said that they were working on getting this case featured on next week’s Crimewatch television programme, although they were struggling because it wasn’t considered newsworthy enough. Then he handed the floor to his team, asking Emma-Jane Boutwood to report first.
    The young DC produced a list of all missing persons in the county of Sussex who fell into the estimated time period of the victim’s death, but without any conclusion. Grace instructed her to broaden her search to the nationwide missing-persons files for that time.
    Nick Nicholl reported that DNA samples from the woman’s hair had been sent to the lab at Huntingdon, along with a bone sample from her thigh for DNA extraction.
    Bella Moy reported that she had met with the city’s chief engineer. ‘He showed me through the flow charts of the sewer system and I’m now mapping possible places of entry further up the drain network. I’ll have that complete some time tomorrow.’
    ‘Good,’ Grace said.
    ‘There’s one thing that could be quite significant,’ Bella added. ‘The outlet from the sewer network goes far enough out to sea to ensure that all the sewage gets transported offshore by the currents, rather than towards it.’
    Grace nodded, guessing where this was heading.
    ‘So it’s possible that the murderer was aware of this – he might be an engineer, for instance.’
    Grace thanked her and turned to Norman Potting, curious to know what the Detective Sergeant was looking so pleased about.
    Potting pulled a set of X-rays from a buff envelope and held them up triumphantly. ‘I’ve got a dental records match!’ he said.
    There was a moment of total silence. Every ear in the room was tuned to him.
    ‘I got these from one of the dentists on the list you gave me, Roy,’ he said. ‘The woman