According an article by Russian press agency Tass, Dutch public prosecution service has requested the Russian federation 5 times to submit information to help the criminal investigation into the downing of MH17.
This blogpost publishes an overview of the requests. All is based on public available information. Known are these requests.
- Request submitted to Russia at 15 October 2014 was to hand over primary radar data regarding the area Donetsk/Luhansk for the period from 14 July up to and including 18 July 2014.
Russia responded by handing over a video recording showing both primary radar and secondary radar data. This information was used by Dutch Safety Board
- Unknown data but before September 2016. JIT requested Russia for information about BUK systems
- Sometime between mid February and March 2017 a request was sent to resubmit previously handed over radar data in ASTERIX format. Russia send ASTERIX data in August 2017.
- Probably in March 2017 Dutch prosecutor request Russia to explicit hand over radar data of Buturinskaya radar antenna
The other two legal requests are not known.