If they said their collection authority has not changed, I would agree with that proposition. However, if we're talking about the RCMP, the RCMP has very broad authority under the common law to collect, share, and analyze information for investigative purposes. If the information is relevant to a criminal investigation and does not attract a charter interest, then I don't think a warrant is required.
There may be some cases in which section 7 or section 8 would be engaged, in which case additional safeguards would apply.