Possession
Actual control over a thing.
Possession is the actual control over a thing, regardless of who owns it. A tenant is also a possessor without being the owner. Possession is protected: taking something away or interfering by one's own authority (unlawful interference) is not permitted.
The relevant statutes
§ 854 BGB
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Related terms
General explanation for self-help, not legal advice (RDG). Individual cases may differ: if in doubt, contact a consumer advice center or a lawyer.