P.R. Laws Ap. tit. 34A, § 1–A, Rule 2.2
(a) The complaint filed in the interest of a minor shall serve as grounds to issue an order for apprehension thereof. It must be signed and sworn by someone with personal knowledge of the facts. Prosecutors for Minors’ Affairs, prosecuting attorneys and members of the State Police may sign and swear complaints also when they become aware of the facts constituting the offense through information and belief, but in these cases the complaint shall serve as grounds to issue an order for apprehension only after the issuing magistrate has examined any witness with personal knowledge of the facts.
(b) If it may be determined from the complaint and the examination of witnesses with personal knowledge of the facts that probable cause exists to associate the minor with the facts constituting an offense the judge shall issue an order for apprehension thereof, or shall summon the minor, subject to the provisions of Rule 2.8 of this appendix.