Rules of evidence
1. This section will assist you in understanding the legal rules that have to be met in order for evidence to be admissible before a criminal court. It will focus on the rules of evidence in a criminal trial. However the same evidential issues are also relevant when you are:
considering whether there should be a prosecution.
There must be sufficient admissible evidence for there to be a realistic prospect of conviction before a prosecution can be undertaken;
preparing cases for prosecution.
You must consider whether there may be evidential difficulties at all stages of the process, and whether additional evidence may be required.