R v Grant (2008) EWCA Crim 1870
From Mental Health Law Online
Based on recently-obtained medical evidence that the appellant's significant learning disability and unfitness to plead was masked by his external demeanour and physical appearance, his conviction (and 3-year community order) was quashed and substituted with a verdict of not guilty by reason of insanity (and a 2-year supervision order).
Citations
[2008] MHLR 202, [2008] EWCA Crim 1870