Tort: common in ontario, following british system, not all our laws are codified (written down) Laws grow over time, changes slightly and another law would be made. Cause of action = type of lawsuit (e. g. tort) Plaintiff/defendant = parties to the action: plaintiff = complaint , someone bringing the action. Prima facie = on the face of it ( obviously ) Tort law is designed so that injured party can sue for damages and get compensation for the harm done to them. Always up to plaintiff to prove something (e. g. that he ran a car through my. Object of tort law: place injured party back into the position they would have been in had the tortious act not occurred. No harm = no tort; so even if intention to harm existed but there was no injury can"t sue through tort because victim" never suffered.