The importance of corroboration is unique to Scots criminal law.[1] A long-standing feature of Scots law, the requirement for corroborating evidence means at least two independent sources of evidence are required in support of each crucial fact before an accused 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.