What crime did the young man commit in lady and tiger?

In "The Lady or the Tiger," the young man did not actually commit any crime. He was falsely accused of treason against the king. Due to the laws of the kingdom, he faced a strange ordeal to determine his guilt or innocence. He had to choose between two doors, one of which concealed a beautiful lady waiting to become his bride, and the other concealing a ferocious tiger ready to devour him. Hence, his predicament involved no specific crime but centered around a dramatic test to decide his fate.