Everything which is not forbidden is allowed partially coincident with Nulla poena sine lege
"Everything which is not forbidden is allowed" is a legal maxim. It is the concept that any action can be taken unless there is a law against it. It is also known in some situations as the "general power of competence" whereby the body or person being regulated is acknowledged to have competent judgement of their scope of action.
The opposite principle "everything which is not allowed is forbidden" states that an action can only be taken if it is specifically allowed.
A senior English judge, Sir John Laws, stated the principles as: "For the individual citizen, everything which is not forbidden is allowed; but for public bodies, and notably government, everything which is not allowed is forbidden." Legal philosopher Ota Weinberger put it this way: "In a closed system in which all obligations are stated explicitly the following inference rules are valid: (XI) Everything which is not forbidden is allowed".
partially overlapping with partially intersecting with partially sharing with partially matching with partially aligning with