I loved my Scottish dad- humane, kind and sensible, non-condemning

en.wikipedia.org/wiki/Corroboration_in_Scots_law

The importance of corroboration is a unique feature of Scots criminal law.[1] A cornerstone of Scots law, the requirement for corroborating evidence means at least two different and independent sources of evidence are required in support of each crucial fact before a defendant can be convicted of a crime.[2] This means, for example, that an admission of guilt by the accused is insufficient evidence to convict in Scotland, because that evidence needs to be corroborated by another source. However, testimony from some experts, such as forensic medical examiners or doctors, is accepted by courts on the basis of the expert's report alone, therefore requiring no corroboration.