die Rechtsgrundlage
legal basis
The body of laws, regulations, and rules on which a specific decision, contract, or action is legally based.
Für diese Maßnahme fehlt die notwendige Rechtsgrundlage.
This measure lacks the necessary legal basis.

legal basis
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legal basis
The body of laws, regulations, and rules on which a specific decision, contract, or action is legally based.
Für diese Maßnahme fehlt die notwendige Rechtsgrundlage.
This measure lacks the necessary legal basis.

The word is made up of 'Recht' (law/right) and 'Grundlage' (basis), connected with an 's'. It literally describes the basis or foundation that rests on the law.
Jede staatliche Handlung benötigt eine klare Rechtsgrundlage.
Every state action requires a clear legal basis.
'Rechtsgrundlage' (legal basis) is a formal term from legal, administrative, and political language. It is rarely used in everyday speech.
Der Anwalt prüfte die Rechtsgrundlage des Vertrags.
The lawyer examined the legal basis of the contract.
Common verbs used with this noun are 'schaffen' (to create), 'prüfen' (to examine/check), or 'fehlen' (to be lacking). It is often used with the preposition 'für' to name the purpose.
Die Regierung muss eine neue Rechtsgrundlage für das Projekt schaffen.
The government must create a new legal basis for the project.
basis / foundation
'die Grundlage' and 'die Rechtsgrundlage' both refer to something on which a decision or action is based. 'die Grundlage' is general and can refer to knowledge, facts, ideas, or relationships. 'die Rechtsgrundlage' is more specific and always means laws, rules, or regulations that legally permit or justify something. The words can be confused because both are often used with decisions. But when it is about authorities, contracts, prohibitions, or rights, 'Rechtsgrundlage' is more precise. Without a legal context, 'Grundlage' usually fits.

Die Behörde prüft zuerst die Rechtsgrundlage für den Bescheid.
The authority first checks the legal basis for the decision.
Die Umfrage ist die Grundlage für unseren neuen Plan.
The survey is the basis for our new plan.