Section 7 of the Canadian Charter of Rights and Freedoms says:
Your rights if detained or arrested
Right to remain silent
“Everyone has the right to life, liberty and security of the person and the right not to be deprived thereof except in accordance with the principles of fundamental justice.”
Section 7 has been interpreted to give people many rights, including the right to silence.
You do not need to make a statement.
If you decide that you want to make a statement, it is recommended that you try to have your lawyer there when you do.