Main navigation:
In many cases, the issue between the parties is resolved before the case goes to court and there may be no need for the witness to come to court to give their evidence.
Where the case goes to court, there may be a proof or other hearing where the court needs to hear evidence from witnesses like you.
If your evidence is not controversial, it may be possible to have it agreed between the parties so that you may only have to give a sworn written statement (affidavit) rather than come to court.