This is a common law offence which means that it does not come under particular legislation. The law surrounding it is from case law rather than legislation by parliament.

If you look at what must be proved that is basically what the law is in relation to this charge.

There is then a lot of case law that explains this law in greater detail.

1. That there was a trial

2.  That the accused spoke to or had contact with a jury member

3.  That the accused did so with the intent of influencing the juror to return a certain verdict

4.  That doing so interfered with the administration of judtice

1. Factual dispute

2. Lack of intent