Investigators suspected that an alleged attempt to murder a jail guard that sparked the sweeping Project South police corruption probe may have been ordered by a jailed accomplice of alleged cocaine kingpin Ryan Wedding with help from the inmate’s former girlfriend, according to newly released court documents.

She was working alongside the jail officer at the Toronto South Detention Centre, where the inmate was also detained.

While neither the inmate nor the female correctional officer were charged, both were central targets in the murder-conspiracy investigation, the documents say.

Announced in February as one of the biggest police corruption busts in Canadian history, Project South has resulted in charges against seven serving Toronto Police officers and a retired officer, as well as 20 civilians, on an array of allegations, including bribery, drug trafficking and the alleged botched hit. Investigators have alleged that members of organized crime were buying data and addresses from police officers, which were then used to co-ordinate targeted shootings and other crimes.

The information to obtain documents (ITOs), which investigators used to get judicial authorization to conduct searches and make arrests in the bust, were unsealed in Ontario Superior Court Friday, after a joint application by a media consortium, including The Globe and Mail.

The package includes more than 500 pages of ITOs and warrant applications issued on the eve of February’s takedown raids. Much of the material remains under a publication ban, while Justice Laura Bird considers arguments from the media consortium, the Crown and the defendants about whether the remaining material should be shielded to protect the fair trial rights of the accused.