Insofar as this is required to perform the review in accordance with section 316, the court may
1. demand that the company provide information and documents,
2. demand that public domestic bodies provide information and documents and may request the necessary information and documents from public bodies of another Member State of the European Union or of some other Contracting Party to the Agreement on the European Economic Area having competence in the fields concerned by the cross-border merger,
3. demand that a special negotiating body that has been instituted provide information and documents,
4. involve an independent expert, and
5. hear, in the context of the review performed in accordance with section 316 (3), a union represented in the merging enterprise.
If a domestic public body is competent in a field concerned by the cross-border merger, then it may transmit, upon request, the necessary information and documents to the body of another Member State of the European Union or of some other Contracting Party to the Agreement on the European Economic Area that is competent for the issuance of a merger certificate.