clausum fregit

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
CLAUSUM FREGIT, torts, remedies. He broke the close. These words are used in 
a writ for an action of trespass to real estate, the defendant being 
summoned to answer quare clausum fregit, that is, why he broke the close of 
the plaintiff. 3 Bl. Com. 209. 
     2. Trespass quare clausum fregit lies for every unlawful intrusion into 
land, whether enclosed or not, though only grass may be trodden. 1 Dev. & 
Bat. 371. And to maintain this action there must be a possession in the 
plaintiff, and a right to that possession.9 Cowen 39; 4 Yeates, 418; 11 
Conn. 60, 10 Conn. 225; 1 John. 511; 12 John. 1834 Watts, 377; 4 Bibb, 218; 
15 Pick. 32; 6 Rand. 556; 2 Yeates, 210; 1 Har. & John. 295; 8 Mass. 411. 
    

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