I don't think so. It is tried and it is a requirement that is used every day in provinces and territories in this country, and it does not interfere with policing. Telewarrants, for example, are one provision where attending before a judicial officer is impractical. And again, I go back to the types of investigations where many of these provisions might be relied upon. It will generally be anticipated in advance, well in advance, because it will typically be—my guess—for major investigations.
Will there be an exigent circumstance? That's the question. Will there be an exigent circumstance ever, such that it is simply not possible to get prior judicial authorization? The law recognizes some instances--for example, what is called hot pursuit, for the police to enter a premise without a warrant--but they're very, very limited circumstances. Might there be such limited circumstances that would apply here? Maybe, but I would suggest it would be rare and they should be carefully spelled out if exigent circumstances are recognized at all.