A more thorough explanation:

Definition: Vel faciendo vel delinquendo (vel fay-shee-en-doh vel dee-ling-kwen-doh) is a Latin legal term that means either by doing something or by leaving something undone. It refers to the fact that a person can be held responsible for their actions or inactions.

Example: A person who fails to pay their taxes is guilty of vel faciendo vel delinquendo. They are responsible for their inaction of not paying taxes, just as someone who commits a crime is responsible for their action.

Explanation: The example illustrates the definition of vel faciendo vel delinquendo by showing how a person can be held responsible for both their actions and inactions. In this case, the person who fails to pay their taxes is just as guilty as someone who commits a crime because they have neglected to do something that is required of them by law.