Boat operator 'recklessly' splits pod of whales: A heartbreaking wake-up call for marine safety.

Dolphin and pilot whale disturbance convictions against Aberdeen sea life tour operator Richard James Greenhowe have been upheld by the Sheriff Appeal Court, which refused his appeal on 3 November 2026. Greenhowe, owner and skipper of the sailing vessel Seacab, was found to have deliberately or recklessly disturbed the animals during two separate incidents in July 2023. The judges ruled that everyday language, not scientific terminology, governs what counts as disturbance, because the offence targets what a skipper did and whether it was reckless, so ordinary eyewitness accounts and video footage can prove it without an expert deciding the question.

How the Seacab skipper drove through a dolphin feeding area and turned pilot whales towards shore

According to the written opinion of the Sheriff Appeal Court, as reported by Scottish Legal News, Greenhowe ran sea life tours from Torry Battery in Aberdeen. On 22 July 2023, dolphins were feeding around the north breakwater at Aberdeen Harbour when Seacab left the harbour, passed the feeding area, turned 180 degrees and travelled back through it, then turned again and made a second pass. At times the boat was between five and 10 metres from the animals.

The dolphins head-slapped and then swam out to sea.

Eight days later, up to 25 pilot whales, divided into a larger and a smaller pod, were close to the coast. The larger group was moving out to sea when Seacab travelled directly towards it at speed, slowed as it closed in and positioned itself between the whales and open water before turning towards them. The larger pod changed direction and headed for the beach, while the smaller pod became separated. The sheriff treated this as a particular concern because pilot whales close to shore risk stranding.The findings rested on eyewitness evidence, video footage and expert testimony. The sheriff rejected Greenhowe's explanations that he was surveying the breakwater on the first date and could not initially see the whales on the second. He concluded that the vessel was driven through a known dolphin foraging area, and straight towards the whales, without regard for the disruption caused. After a trial at Aberdeen Sheriff Court, Greenhowe was convicted on 21 April 2026 and fined £1,000 for the dolphin incident and £1,500 for the pilot whales. Leave to appeal against the sentence was refused, but he was allowed to challenge the convictions on restricted grounds.

Why judges ruled that 'disturb' has its everyday meaning in Scotland's marine wildlife law

The case centred on regulation 39(2) of the Conservation (Natural Habitats, etc) Regulations 1994, which makes it an offence to deliberately or recklessly disturb any dolphin, porpoise or whale. The regulation does not define the word, and the parties could not point to any earlier reported case on it.

Greenhowe argued that disturbance of marine mammals is a specialist behavioural issue that a lay observer cannot judge. He relied on guidance from NatureScot, the conservation body formerly known as Scottish Natural Heritage, which describes disturbance as an interaction that changes an animal's behaviour or environment in a way that affects its well-being or survival in the short, medium or long term. Because a conviction brings a criminal record and a penalty, he said, a low threshold based on a lay impression of momentary distraction was inappropriate and too uncertain.The Crown countered that an undefined word takes its ordinary English meaning, and that accidental disturbance during otherwise lawful marine activity is not criminalised, since the offence requires deliberate or reckless conduct. Sheriff Principal Gillian A Wade KC, delivering the court's opinion, agreed. She said the guidance could help identify behaviours that might amount to disturbance but could not "trump the primary legislation". The Shorter Oxford English Dictionary links the word with agitation, intrusion, worry or anxiety, interference with a settled course, frustration and interruption. The court held that the charges gave Greenhowe fair notice that driving over or too close to dolphins and whales was apt to cause exactly that.

Why the expert's cautious wording of 'likely' and 'may' did not stop the convictions

The Crown's skilled witness, Karen Hall of NatureScot, is qualified to assess marine wildlife behaviour. Her report described disturbance of the pilot whales as "likely" and said behavioural changes in the dolphins "may" have been caused by the vessel. Greenhowe argued that such tentative conclusions fell short of proof beyond reasonable doubt, and that eyewitnesses might have seen play or feeding rather than disturbance.

The judges said this misunderstood the role of a skilled witness, whose task is to guide a fact-finder through a specialist area, here the behaviour of marine mammals, rather than to settle the issue. The sheriff had to weigh all the evidence, including eyewitness accounts, video footage and Greenhowe's own explanations, and could accept or reject the expert's view as with any other witness. The court called the idea that her opinion should displace his own assessment plainly mistaken.It also noted that her evidence did not favour Greenhowe to the extent he suggested. On the pilot whales, Hall's report found that Seacab clearly breached the Scottish Marine Wildlife Watching Code, described the splitting of the pod as a clear sign of disturbance and called it very fortunate that no stranding occurred. On the dolphins, she noted that the boat came closer than the recommended minimum distance, appeared to speed up and change direction, and was in a key foraging area, all of which raised the risk of disturbance. Breaching, tail slaps, and head slaps, she observed, can also be signs of it.

A procedural flaw in the appeal and why the Sheriff Appeal Court still considered the merits

The stated case contained no questions challenging the sheriff's findings that the dolphins and pilot whales were disturbed, and the court noted that unless those findings were undone, the appeal had to fail. A question asking whether the sheriff was entitled, on the evidence, to make each finding would have been preferable, the judges said.

They nonetheless examined the arguments because the meaning of "disturb" was of some importance, and Greenhowe contended that the sheriff had set the bar for criminal liability too low. His advocate accepted at the hearing that if the word took its dictionary meaning, the remaining questions on expert evidence and the footage would also fall away. All three questions were answered against him.