As a taxpayer under investigation in Canada, you must be careful about what you say and do. Your words or actions may harm your defence in the case of charges being brought against you.
Fortunately, you are protected by the lawyer-client relationship in Canada. Anything you say to your lawyer is confidential.
Remember that this is not the case with your accountant. There is no such confidentiality or protection afforded. Anything you say to your accountant can be used against you.
An accountant’s records are not subject to privilege either. Their files will be seized during a CRA investigation against you.