A more thorough explanation:

liber et legalis homo

Someone who is free and lawful.

• A citizen who follows the laws of their country and is not imprisoned is a liber et legalis homo.
• A person who has been released from prison after serving their sentence and is now abiding by the law is a liber et legalis homo.

These examples illustrate that a liber et legalis homo is someone who is both free and following the law. It is important to follow the laws of your country to be considered a lawful citizen and to avoid imprisonment. Once someone has served their sentence and is released from prison, they must continue to follow the law to be considered a liber et legalis homo.