Negative Actions of People.

Legal change can happen in reaction to the negative behaviour of people such convicted murderer Richard Sauve.

Positive Actions of People.

Legal change can be driven by the positive behaviour of influential people such as former Prime Minister Trudeau.

Major Events.

Legal change can be in response to major events such as the attack on the World Trade Centre.

Beliefs and Attitudes.

Legal change can happen in support of the beliefs and attitudes of groups of people.

Ideas.

Legal change can happen when new ideas are sponsored by individual people such as the legacy left by the actions of Dr. Morgentaler.

Court Decision.

Legal change can be caused by the decisions made in the courts.

Royal Commission Recommendations.

Legal change be in response to recommendations made by Royal Commissions such as the Royal Commission on the Status of Women.

Advocacy Groups.

Legal change can happen through the work of advocacy groups such as Mothers Against Drunk Driving (MADD) or the Police Chiefs Association.

Technological Advances.

Legal change may be required after the development of new technologies such as the printing press, cars, airplanes, computers, or the Internet.

Leadership.

Legal change can happen through the leadership of influential people such as Tommy Douglas.