Helping the Escaped Airman

A restaurant owner, a naturalized citizen, was charged with treason in wartime. An enemy air force officer had escaped from a prison camp in a neighbouring country and reached the owner's city. The owner is said to have fed and entertained him, given him money and personal items, driven him around, got him a hotel room and bought him a bus ticket to another city. The law needs two witnesses to each act and an intent to help the enemy. The owner gave no evidence himself.