13-June-2015: I received a call from an Eric Stark who identified himself as an agent for Revenue Canada. He stated that there would be an arrest warrant issued on Monday because there were inconsistencies in one of the boxes on my T4. He then said I have two choices, get arrested or arrange to pay via money order or cash card. It started sounding like a protection scam from the mob. During this call I flipped open the phone book and determined the caller ID number (1-800-267-6999) was for the Revenue Canada Tax Information Phone Service. I asked him for a callback number to which he responded with 1-613-707-0391. He further stated that numerous mailings were sent to me over the last year concerning this matter. There have been no mailings received by me. The only personal information about myself that he could supply was what one would find in a phone book or electronic listing.

Get calls often from 800-267-6999, the last one was "Brian Cooper" Before any further discussion I wanted to note down the details so, I noted his name, calling from CICS and asked him to give his phone number, he replied that don't you have call display, I said I am using a traditional phone and it don't have caller ID, to that he said don't you live in Canada? I said you should know that, I said what ever the case be give me your phone number and I want to call you back, and he hung up.
Did some search on internet and found this so I thought I must share this.
Earlier I had asked them to go do what ever they want, and after few days some new person calls.
Next time I will asked them to hold and say I am bringing the local Police on this as conference call before I further answer your call, lets see what happens.

Caller identified himself as John Adams from Revenue Canada and referenced a criminal investigation (audit) and wanted  him to reply  to 613-707-0391.  Listened, did research but did not respond.  He had an Asian accent for an American name John Adams.

Got a call from Eric Starr---613-707-0391, he left me a telephone message that was extremely difficult to understand.  He said something about an investigation.  English name and could barely speak english.  Not calling him back.  This is clearly a scam.  I have my taxes prepared by an accountant.   If the CRA have an issue, they would contact him or at least send me something in writing.   I know I have no issues with taxes.  I pay and always on time.

I wonder if this has something to do with those people who got into the Government website recently.

PL

Exact same scenario as Perry Brown stated above.  Same callback number, same foreign accent for generic North American name.  Scam written all over it.