The trespass on the domestic peace has been a prohibited act in the Polish state (or in the territories that were originally Polish) for over a thousand years (from the Middle Ages till now). During that long period, one can observe various modifications to the definition of the offence. It seems that invasion or intrusion is the main concept. In some periods, the invasion of land and the intrusion of an apartment, a church, a school, a fenced square, a cemetery, a cultivated field, etc. were penalised following the same rules. Gradual but consistent mitigation of penalties: from death penalty in old times through imprisonment (deprivation of liberty) to an alternatively determined (and relatively lenient) sanction under the currently binding Criminal Code of 1997 (a fine, limitation of liberty or deprivation of liberty for up to one year) should be recognised as a regularity. What is worth mentioning is a very similar approach to the trespass on the domestic peace in the Polish Criminal Codes of 1932, 1969 and 1997 (the features of the act were formulated in the same way: invasion or failure to leave, regardless of an entitled person’s request, but the objects of the executive action were specified differently).