§ 11. To facilitate the determination of the economic practicability
of any step in the said comprehensive plan, or of any other fact or
matter which the port authority is authorized and empowered to decide or
determine, the port authority may conduct investigations, inquiries or
hearings at such place or places and at such times as it shall appoint.
Such investigations, inquiries or hearings may be held by or before one
or more of the commissioners of the port authority, or by or before any
person or persons appointed as its representative, and when ratified,
approved or confirmed by the port authority on its action shall be and
be deemed to be the investigation, inquiry or hearing of the port
authority.

For the purpose of such investigations, inquiries or hearings, and of
such other action or powers as the port authority may be authorized or
empowered to take or exercise, it shall have jurisdiction of any and all
persons, associations, or corporations, residing in, or acting or
existing under or by virtue of the laws of, or owning property or coming
within this state.