from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
CONTRA PACEM, pleadings. Against the peace.
2. In actions of trespass, the words contra pacem should uniformly
accompany the allegation of the injury; in some cases they are material to
the foundation of the action. Trespass to lands in a foreign country cannot
be sustained. 4 T. R. 503 2 Bl. Rep.. 1O58.
3. The conclusion of the declaration, in trespass or ejectment, should
be contra pacem, though these are now mere words of form, and not
traversable, and the omission of that allegation will be aided, if not
specially demurred to. 1 Chit. Pl. 375, 6 vide Arch. Civ. Pl. 169; 5 Vin.
Ab. 557 Com. Dig. Action upon the case, C 4 Pleader, 3, M 8; Prohibition, F
7.