English translation, emphasis added:
A joint operation of the BTI Team 8 and the Local Research Centre of the Brussels Police Capitale-Ixelles allowed to put hands on several alleged bicycles stolen during a check following a situation deemed suspect. Thanks to this intervention, some of the owners have already been found, but several bicycles are still waiting to be claimed by their legitimate owners. In the announcement that was posted on Facebook and that you will find at the bottom of this article, you will see all the bikes found.
If you recognize one of these bikes or think it might be yours, the police invite you to contact them quickly. Each bike is individually referenced and can be identified with specific details provided by the owner during the contact.
To report that one of these bikes belongs to you, contact the police via private message on their dedicated page "Vancingflic" by mentioning the reference of the advertisement and the number of the bike concerned. In order to check your legitimacy as the owner, specific details will be requested, such as the serial number, photos or any other element to prove that the bike belongs to you.
To protect your bicycles, consider registering them in databases like mybike.brussels, a Brussels-based initiative to facilitate the identification of stolen bicycles. The recording is to mark your bike with a unique number linked to your personal details. In the event of flight, it simplifies the procedures to recover it.
A commune newsletter also recently wrote:
(English translation, emphasis added)
What about THEFT?
If theft of your bike took place without violence or direct contact and if you do not know the author of the facts, the complaint to the police can be made online (my.police.be) or in a police station (taking an appointment in advance via polbruno.be). The bicycles found are listed on a Facebook page, managed by the Brussels Region, the police and the CyCLO asbl (f MyBike. brussels Bikes found). If you recognize your bike, follow the instructions to know who to contact and how to get it back.
(original French)
QUE FAIRE EN CAS DE VOL ?
Si le vol de votre vélo a eu lieu sans violence ou contact direct et si vous ne connaissez pas l’auteur des faits, le dépôt de plainte à la police peut se faire en ligne (my.police.be) ou dans un commis- sariat (en prenant rendez-vous au préalable via polbruno.be). Les vélos retrouvés sont recen- sés sur une page Facebook, gérée par la Région bruxelloise, la police et l’asbl CyCLO (f MyBike. brussels Vélos retrouvés). Si vous reconnaissez votre vélo, suivez les instructions pour savoir qui contacter et comment le récupérer.