He says the decomposition of the bodies that have been dredged up is significant – 48 were so badly decayed as to be unidentifiable – as this links them together. So, too, does the fact that they were all male. “If this was a section of motorway and one person was being killed every month, it would be declared an accident black spot,” he adds. “I do think there has been a lack of action – whether these are accidents or suicides or something more ominous, or a combination of all three. There needs to be increased police presence; more CCTV; perhaps a public safety campaign.”