209. Powers of search.

If an appropriate officer1 is lawfully on any premises2 he may search the premises for the purpose of finding any property3 which he has reasonable grounds for suspecting may be found there4 and, if found there, he intends5 to seize6. An appropriate officer may also:

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    (1)     if he has reasonable grounds for suspecting that a person is carrying property that may be so seized and so far as he thinks it necessary or expedient for the purpose of seizing the property, require the person to permit a search of any article with the person7 and to permit a search