A way of proving a fact. Evidence can be in the form of a document or it can be given orally to the court under oath. Unless a fact is agreed, evidence will be needed.

“Our client has £10,000 in his building society account”

is a mere assertion and is not sufficient, but a photocopy of the latest page in the client’s building society showing a balance of £10,000 is evidence which proves the fact being asserted.