Have you not received any information from the other party ?
The police officer who observed the accident normally communicates the contact details of the opposing party with a standard form (name, address, characteristics of the vehicle, insurance company and policy number).
If you have not received this data, please contact, during opening hours, the Federal Police Police station at SHAPE on 065/44.44.72 quoting the number of the report or via the contact form ( here ) in which you mention the date of the accident and the number of the report.
We will help you as soon as possible