Proving copyright infringement: John Kaldor Fabricmaker v Lee Ann Fashions

To prove copyright infringement, the claimant has the onus of proving two things: first the alleged infringer created his or her work by copying from the copyright owner’s work (copying in fact); second, that all or a substantial part of the original work was copied (illicit copying). The analytical steps in each inquiry have been considered in numerous cases. For example, the Supreme Court of Canada reviewed the steps a Canadian court should follow in establishing illicit copying in a “altered copying” case in Cinar Corporation v.