The Feb. 13 killing of Kim Jong Nam sparked a fierce diplomatic battle between two countries that once had warm relations.

Kuala Lumpur: Handcuffed, two women accused of poisoning Kim Jong Nam appeared in court yesterday as their lawyers said Malaysian police still have not handed over security camera footage and documents crucial to the defence.

When asked about lawyers' contention that they had sent requests five times, by fax and by hand, without getting a police reply, Khalid said, "Maybe it did not reach the correct officer".

On March 1, Indonesian Siti Aishah, 25, and Vietnamese Doan Thi Huong, 28, were charged in the Magistrate's Court with four others still at large, with murdering Kim, 45. The chemical the women allegedly used on Kim Jong-nam is listed by the United Nations as a weapon of mass destruction.

Soon after their arrest, Aishah and Huong said they were unwitting pawns in the assassination, which the US and South Korean intelligence believe was orchestrated by Kim Jong-un or his agents. Kim Jong-Nam, the half-brother of North Korean leader Kim Jong-Un was assassinated in Malaysia on February 14.

This was after his client Siti Aisyah and Doan Thi Huong were taken to a Malaysian court in bulletproof vests, ahead of a murder trial that could see them hanged.

The three were allowed to go home late last month, along with the body of Kim Jong Nam, as part of a swap deal with North Korea, which had banned nine Malaysians from leaving there.

"They can say anything they like but we have a case with us.

There should be no trial by ambush", Aishah's lawyer Gooi Soon Seng said.

"(He) may not be implicated in the actual event of the murder, but his evidence is so important, central to our defense because it clearly shows how this naive girl was duped into doing things outside her knowledge", Gooi Soon Seng said at his office in the suburbs of Kuala Lumpur.

Malaysian police have said they questioned the three men and found no grounds to hold them. One of the men identified by police is Ri Ji U, known by his nickname James. Chang was later identified by Aisyah as Hong Song Hac, one of four North Korean suspects who fled Malaysia on the same day Kim was killed.

They allegedly committed the offence at Kuala Lumpur International Airport 2 (KLIA2) departure hall around 9am on Feb 13, as charged under Section 302 of the Penal Code which provides for the mandatory death sentence upon conviction.

Prosecutors are expected to apply for the case to be transferred to an upper court, where the women would be tried for murder.

Gooi said Aisyah and Doan are in good health and being treated well in prison.