"Officer Eric Foster" did everything he could to sound as serious as a heart attack; thing is you can tell he's reading a script and as usual the language and presentation fails <SCAM>. This is not how the CRA or any official government agency contacts anyone. My message was the same as all the others on here.
Rule of thumb: unless you prompted it or it's from someone you know, pretty much EVERY instance of unsolicited contact is a SCAM. EVERY-SINGLE-ONE.
Sites like 419eater are becoming popular tools for revenge. Worth checking out.