In addition, delving into this case, I was able to talk to some people whose level of knowledge is colossal. And they shared information that sinbad was not confiscated by the authorities, saying that this was just a very well-developed trick to relieve tension.
I do like the theory but there is one major thing stopping me from believing it and that is the official statement of the Dutch Financial Intelligence and Investigation Service (FIOD), their official website is
www.fiod.nl, and the article regarding seizing Sinbad is found here
https://www.fiod.nl/fiod-takes-large-crypto-currency-mixer-off-the-air/ which also contains the same image that was present in Sinbad's website.
The article explicitly says
The servers of Sinbad.io were seized in the Netherlands and Finland.
Dutch investigative agencies such as the FIOD will continue to crack down on this. This action aimed at Sinbad.io is a heavy blow to organized crime and also serves as an example and warning to founders and users of similar services.
Then posts the said image.
Strange enough there is no mention of it on the Finnish police website or any other place that is Finnish official.