In a criminal case, the Crown prosecutor must prove the defendant’s guilt "beyond a reasonable doubt." This means that at the end of a trial the judge or jury can only find the defendant guilty if they are left without a reasonable doubt about the defendant’s guilt. In other words, there is no logical or rational reason to doubt the defendant’s guilt.
This is not the case in civil law. Civil law is about private disputes between individuals or between individuals and organizations. Civil matters include areas such as contract law, family law, tort law, property law and labour law. The person suing for a wrong has the burden of proving their case on a "balance of probabilities." This means that a judge or jury must believe their story and evidence more than the defendant’s version. They do not need to be convinced beyond a reasonable doubt.
Civil disputes usually involve some harm, loss or injury to one party or their property. Unlike criminal law; however, civil law is primarily involved with compensating victims. If a civil action is successful, the defendant will be responsible for the wrongful action. While a defendant in a criminal case may be found "guilty" or "not guilty," a defendant in a civil case is said to be "liable" or "not liable" for damages.
If you have a civil law problem, you have to take action yourself if you want to get a legal remedy. You can hire a private lawyer, and you will have to pay the expenses of pursuing the matter. For example, if you hire someone to paint your house and they do a poor job, it is a dispute between you and the painter. The police do not get involved. If you want to sue the painter for breach of contract, it is your responsibility to do so.
Sometimes criminal law is referred to as part of our public law because it applies to all Canadians and regulates relationships within our society. Similarly, civil law is sometimes referred to as private law because it regulates private relationships between individuals in our society.
You are not alone in being confused about how a person acquitted of murder in a criminal trial can be held liable for a victim's wrongful death in a civil trial.
The first step to understanding this seeming contradiction is to know that a criminal prosecution involves different laws, a different court system, and different burdens of proof. Specifically, the definition of first degree murder in the context of the O.J. case requires that the act be done deliberately and with a great deal of malice directed toward the victim. And to convict in the criminal court, the case against the defendant must be proven beyond a reasonable doubt.
In a civil case for wrongful death, on the other hand, you have to show only that the defendant was legally responsible for the death. But, to get punitive damages, as the plaintiffs did in the O.J. case, you have to show that the defendant acted recklessly. The burden of proof in a civil case is preponderance of the evidence -- a much lesser burden than is required in a criminal case.
So, while a criminal jury might reasonably fail to find guilt beyond a reasonable doubt and acquit the accused, a civil jury might also reasonably find by a preponderance of the evidence that he or she acted recklessly and should be held civilly accountable for the death.