Robert Campbell, a 42-year-old Ottawa man, is scheduled to appear in court again this afternoon facing nearly 200 charges of identity fraud, defamation and criminal harassment involving 38 people across Canada, the United States and Britain.

Campbell was arrested one week ago on July 31 at his west Ottawa apartment unit and officers seized at least three computers while executing a warrant.

One day later, Ottawa police said they charged Campbell after an eight-month investigation involving police forces in four provinces — British Columbia, Ontario, New Brunswick and Nova Scotia — as well as forces in Michigan and Hertfordshire and London, England.

Police charged Campbell with 27 counts of criminal harassment, 85 counts of defamation libel and 69 counts of identity fraud. He appeared briefly on Aug. 1 via video and he was set to make another appearance via video on Thursday afternoon.

Robert Campbell courthouse sketch cyberbullying charges August 1 2014

Robert Campbell, pictured in this courthouse sketch, is facing 181 cyberbullying-related charges after an international police investigation. (Laurie Foster-MacLeod)

Police accused Campbell of targeting individuals online with whom he held grudges over a 12-year period. Multiple aliases were used in the alleged attacks and the alleged victims included men, women and their families, according to police sources.

Investigators also said Campbell used software to conceal IP addresses. RCMP and Ottawa police worked together to unmask the software, according to an Ottawa police news release. 

On Aug. 1, a man who identified himself as a victim told CBC News he was the focus of alleged attacks for more than a decade. The man said fake, defamatory social media profiles were set up for him, and his daughter and mother.

A court-ordered publication ban prevents the names of alleged victims from being released.