An Ottawa contractor is facing new charges of fraud and uttering forged documents following his release from prison. The Ottawa Police Service says investigators with the East Criminal Investigations Section conducted an investigation into alleged contractor frauds. Police say 47-year-old Cory Cahill was charged on Tuesday with three counts of fraud under $5,000, three counts of obtain by false pretence not exceeding $5,000, two counts of mischief to property and one count of uttering forged documents. Police say Cahill used several aliases, including Cory Campbell, Cory Perkins and Lincoln Cahill. He operated under the business names Sprumac Renovations and Hammer and Hails Contracting, according to police. “Investigators believe there may be additional victims who have not yet come forward and are encouraging anyone who believes they may have been defrauded by Cahill to contact police,” police said in a media release on Friday. Anyone with information or who believes they may be a victim is asked to contact a tipline set up by police at 613-236-1222, ext. 5625. Cahill was sentenced to four years in prison in March 2022 after pleading guilty one count of uttering threats and one count of fraud over $5,000 in connection to work that was never finished or in some cases never started. Police said Cahill defrauded 28 victims of more than $250,000 over three years. Police said he advertised his work under several business names including Cedar Renovations, Cory HT&T, Epic Wood Finishing and Platinum Cabinets. With files from CTV News senior correspondent Katie Griffin