What is a key difference between a sanction and remedy

The Major difference between Sanction and Remedy is that Sanction is mainly used in Criminal matters while Remedy is used in Civil matters.  

Explanation:

A sanction is a punishment meted on a person guilty of a criminal offence. Sanction occurs after an offender is taken to court to face the charges against him/her. After arguments are canvassed by the Prosecutor and the Defence Attorney, the Judge then arrives at a decision/verdict and the offender is sentenced to a minimum or a maximum number of years in Prison. Criminal offences include Armed Robbery, Murder, Assault, Stealing, etc.

A remedy is a compensatory method for people who have been harmed by the act or negligence of another person. The Remedies a Plaintiff is entitled to are Damages (Monetary compensation), Specific Performance, Injunction, etc.