[skissane]

Even in the US, the exclusionary rule only protects you against illegal evidence acquisition by the government. If a private party illegally gathers evidence against you (without any government prompting), that is admissible. See for instance Burdeau v. McDowell [1]. Another interesting case on this topic is Sackler v. Sackler [2], where the New York State Court of Appeals held that evidence illegally gathered by private investigators (working for one of the divorcing spouses) was admissible in divorce proceedings.

[1] https://scholar.google.com/scholar_case?case=107551340662323...

[2] https://scholar.google.com/scholar_case?case=641943334909742...