section 83.3(4)


83.3(4) Despite subsections (2) and (3), a peace officer may arrest a person without a warrant and cause the person to be detained in custody, in order to bring them before a provincial court judge in accordance with subsection (6), if (a) either (i) the grounds for laying an information referred to in paragraphs (2)(a) and (b) exist but, by reason of exigent circumstances, it would be impracticable to lay an information under subsection (2), or (ii) an information has been laid under subsection (2) and a summons has been issued; and (b) the peace officer suspects on reasonable grounds that the detention of the person in custody is necessary in order to prevent a terrorist activity.