Anyway, here's a fun quote from the Criminal Code of Canada, section 39.
Defence with claim of right
39. (1) Every one who is in peaceable possession of personal property under a claim of right, and every one acting under his authority, is protected from criminal responsibility for defending that possession, even against a person entitled by law to possession of it, if he uses no more force than is necessary.
Defence without claim of right
(2) Every one who is in peaceable possession of personal property, but does not claim it as of right or does not act under the authority of a person who claims it as of right, is not justified or protected from criminal responsibility for defending his possession against a person who is entitled by law to possession of it.
R.S., c. C-34, s. 39.
And section 42, subsection 3:
Trespasser provoking assault
(3) Where a person
(a) having peaceable possession of a dwelling-house or real property under a claim of right, or
(b) acting under the authority of a person who has peaceable possession of a dwelling-house or real property under a claim of right,
assaults any person who is lawfully entitled to possession of it and who is entering it peaceably by day to take possession of it, for the purpose of preventing him from entering, the assault shall be deemed to be provoked by the person who is entering.
R.S., c. C-34, s. 42.
Basically, this means that being in possession of a property or dwelling-house under a claim of right protects you from being prosecuted by law if you assault a police officer who has a court order to seize that property and enters your property, attempting to act upon that order. The thing is, they make it quite clear that you cannot do this without a claim of right. Furthermore, the term "peaceably" essentially means "without causing any harm to others".
Cheers,
Agapooka
NB: All of these quotes are from http://laws.justice.gc.ca/, the official website of Canada's Justice Department. They have stated on their website, that, as of June 1, 2009, the online versions of the acts are official and can be used for evidentiary purposes.
NB2: This is not legal advice.







