We have been using the term 'mutation' pretty loosely up to this point in the course...now we need to define it more precisely: mutation-- a change in the genetic material (ie. DNA).
Stay of proceedings. A stay of proceedings is a ruling by the court in civil and criminal procedure, halting further legal process in a trial or other legal proceeding. The court can subsequently lift the stay and resume proceedings based on events taking place after the stay is ordered.
Stayed: If the charge is stayed by the judge, this means the present proceedings are suspended. It is not a finding of innocence, simply a stopping of the prosecution at a particular point. The proceedings can be started again in the future if certain events occur (for example, new evidence is found).