2015.11.24 The reason why Malaysia was not permitted as full member to the JIT has never been made public. It could be because of Malaysia being neutral and did not want to point fingers to Russia as the culprit. Russia Today has some background here.
2016.9.30 Volkskrant〜Ukraine did not trust Malaysia as the Asian country is seen by Kiev as an ally of Russia. Malaysia signed an agreement with the separatists to obtain the black boxes of MH17.〜did not directly put the blame on Russia as Ukraine did. It kept a neutral role and does so currentl
2016.6.14 Russia Today quotes Mohamed Harridon, a professor in Malaysia.〜that unlike “western counterparts,”Malaysia has taken a “neutral role,”¬ “pointed fingers at Russia,”which couldbe the reason for the country’s exclusion from the investigation./Member ofParliament Omtzigt(
5/25カニーギンを露メディアにカウントするかRemarkably Malaysia was not part of the initiative. The fear Malaysia could leak intelligence to Russia seems to be the most likely reason./ Malaysia joined the JIT 4 months after the start as a results of not being trusted by Ukraine./