The officers indeed found boxes with nitrous oxide bottles in the garage box. The goods have been confiscated. The suspect will be invited for questioning at the police station at a later time.
Dangerous
The storage of nitrous oxide can pose a danger to the surrounding area. Nitrous oxide falls under the Opium Act. It is prohibited to transport, sell, produce, or possess nitrous oxide for recreational use within the Netherlands. If you suspect that nitrous oxide is stored somewhere or that there is trade in nitrous oxide, please report this to the police. This can be done via 0900-8844. Prefer to report anonymously? This can be done via Meld misdaad anoniem at 0800-7000 or online.