P-13.1, r. 1 - Code of ethics of Québec police officers

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6. A police officer must avoid any form of abuse of authority in his relations with the public.
A police officer must not:
(1)  use greater force than is necessary to accomplish what is required or permitted;
(2)  make threats, intimidate or harass;
(3)  knowingly bring a charge against any person without grounds;
(4)  abuse his authority in order to obtain a statement;
(5)  detain any person who is not under arrest, in order to interrogate him.
O.C. 920-90, s. 6.