Even if they overstepped their authority in this particular case, that there is any case where some version of this is legal is absolutely unconscionable.
So everything else seems ok... which blows my mind.
Americans should get off your "FREEDOM" high horse until you reduce your prison population to something sane.
I'm tired of Americans acting like they have a monopoly on Freedom and giving (often uninformed) opinions about how screwed up the justice system of another country is, and how the charter of rights and freedoms is worthless. I just think it's arrogant and hypocritical.
The order is ordering the civilian to allow the agents to enter his home. You can refuse. However, by refusing you very likely become guilty of contempt of Court.
As for the "deny access to his lawyer" the law says : "The defendants have a right to contact their lawyer within a reasonable amount of time". There is however a supervising lawyer present during the search. This lawyer is neutral to the case and is there to take note of what has been seized or searched.
(Not a lawyer.)