It's OK to say "I'm sorry"

British Columbia's Ministry of the Attorney General has introduced Canada's first apology legislation.

The proposed bill will allow people and organizations to apologize for an accident without incurring legal liability or fear of voiding an insurance contract. An apology made by a person or an organization in connection with any matter will not constitute an express or implied admission of fault or liability.

Accident victims often want nothing more than an explanation and an apology for waht happened to them.

The victim get a apology and fell better than nothing.
So if you hit other people's car in accident, it is OK to say "I'm sorry". It doesnot mean you are liable for this accident.

On the other hand, it is nothing to say "I'm sorry."

The Discussion Paper on Apology Legislation.