Former premier Jean Charest and former Liberal fundraiser Marc Bibeau appear to have been the subjects of a major investigation into political corruption and breach of trust up until at least 2016.
According to documents obtained by TVA, Quebec's anti-corruption squad made several information requests, including when they crossed the Canadian border dating back to 2003, personal banking statements and Charest's passport information.
The report said investigators had plans to listen in on private communications in early 2016, though it is not clear if the eavesdropping ever took place.
The investigation, dubbed "Mâchurer," is said to be a spinoff of "projet Lierre," the operation that led to the arrest of Charest's former second-in-command, Nathalie Normandeau.
UPAC would not comment on the report.
The National Assembly's opposition parties though were quick to jump on it.
The Parti Québécois, the CAQ and Quebec Solidaire are all calling on UPAC to finish the investigation and reveal why they were following Charest's whereabouts.
The PQs Pascal Bérubé told TVA the anti-corruption squad must have had serious reasons for focusing efforts on tracking a former Premier, and he would like to know if the UPAC investigation is still ongoing.
The CAQ has called on the Director of Criminal and Penal Prosecutions to intervene while Quebec Solidaire said Charest should be UPAC's number one suspect in Quebec's corruption scandal investigation.
Premier Couillard's office did not comment.
There are no allegations of any wrongdoing on the part of either Bibeau or Charest.