In deciding whether or not to prosecute, the Crown Prosecution Service (CPS) applies a two-stage test. The first stage is the evidential stage: is there a realistic prospect of conviction? The second stage is the public interest stage: is it in the public interest to prosecute?
In the well-publicised case of the Labour Peer Lord Greville Janner the CPS has decided, in relation to a number of very serious sexual offences, that the evidential test has been passed. However, four expert clinicians, two instructed by the CPS and two instructed on behalf of Lord Janner, are in unanimous agreement that Lord Janner suffers from a degenerative dementia that is rapidly becoming more severe. He could not engage meaningfully with any trial process. There is no prospect of recovery, and no risk of future offending.
The CPS has decided that a prosecution would not be in the public interest. It has published detailed reasons.Read More »Lord Janner: Sex, dementia and the public interest