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Shelagh Robertson’s case – verdict of insanity by dementia

A tragic and alarming case is reported by the Guardian and other national newspapers, which describes how the driving exhibited by 75 year old Shelagh Robertson in January 2021 led another vehicle to be diverted from its course and to crash into a mother and her 5 month old son. The baby died of his injuries. The case came to court in Cambridge recently and Mrs Robertson was acquitted on the grounds of insanity: Woman cleared over baby boy’s death due to then-undiagnosed dementia | UK news | The Guardian

There are more details in a local Cambridge newspaper, but I have not found a full account of proceedings. Jurors deliberate in trial of pensioner accused of causing death by careless driving of baby Louis Thorold in Waterbeach (

The essence is that Mrs Robertson has been found to have dementia, probably Alzheimer’s disease. This had not come to medical attention before the accident occurred, so that she was not aware of the condition. The diagnosis has been confirmed by clinical assessment and MRI scan before the trial. Professor Adam Zeman observed that her condition was such at the time that he examined her that he would advise her that she must stop driving.

Evidence from a friend suggests that changes were apparent in Mrs Ro