California Code, Family Code - FAM § 6452

(a) If a law enforcement officer determines under subdivision (b) or (c) that there is probable cause to believe a valid Canadian domestic violence protection order exists and the order has been violated, the officer shall enforce the terms of the Canadian domestic violence protection order as if the terms were in an order of a tribunal of this state. Presentation to a law enforcement officer of a certified copy of a Canadian domestic violence protection order is not required for enforcement.

(b) Presentation to a law enforcement officer of a record of a Canadian domestic violence protection order that identifies both a protected individual and a respondent and on its face is in effect constitutes probable cause to believe that a valid order exists.

(c) If a record of a Canadian domestic violence protection order is not presented as provided in subdivision (b), a law enforcement officer may consider other information in determining whether there is probable cause to believe that a valid Canadian domestic violence protection order exists.

(d) If a law enforcement officer determines that an otherwise valid Canadian domestic violence protection order cannot be enforced because the respondent has not been notified of or served with the order, the officer shall notify the protected individual that the officer will make reasonable efforts to contact the respondent, consistent with the safety of the protected individual. After notice to the protected individual and consistent with the safety of the individual, the officer shall make a reasonable effort to inform the respondent of the order, notify the respondent of the terms of the order, provide a record of the order, if available, to the respondent, and allow the respondent a reasonable opportunity to comply with the order before the officer enforces the order. Verbal notice of the terms of the order is sufficient for purposes of this subdivision.

(e) If a law enforcement officer determines that an individual is a protected individual, the officer shall inform the individual of available local victim services.