Unlawful Detainer unbefugtes Festhalten Unlawful Detainer Desahucio ilegal Desalojo ilegal détention illégale הפרת מניעה חוקית अवैध रोकथाम 不法拘束 detenção ilegal 非法拘留 An unlawful detainer is a summary proceeding for a landlord to recover possession of a leased premises from a tenant wrongfully withholding or "detaining" the property.