In criminal proceedings a statement contained in a document is admissible as evidence of any matter stated if—
The requirements of this subsection are satisfied if—
The persons mentioned in paragraphs (a) and (b) of subsection (2) may be the same person.
The additional requirements of subsection (5) must be satisfied if the statement—
(all of which relate to overseas evidence)
The requirements of this subsection are satisfied if—
A statement is not admissible under this section if the court makes a direction to that effect under subsection (7).
The court may make a direction under this subsection if satisfied that the statement's reliability as evidence for the purpose for which it is tendered is doubtful in view of—