Siti Aisyah is on trial with Doan Thi Huong from Vietnam on the charge of murdering Kim Jong Nam by smearing his face with the banned VX nerve agent at the Kuala Lumpur airport on Feb 13 last year.

The two are the only suspects in custody, though prosecutors have said four North Koreans who fled the country were also involved.

The court heard last week that Aisyah was recruited on January 5 last year to act in what she thought was a Japanese video prank show by Ri Ji U, a North Korean posing as a Japanese man named James. She played her first pranks on that day at a shopping mall in Kuala Lumpur and was paid 400 ringgit (USD 102).

Aisyah's lawyer, Gooi Soon Seng, told the court today that Aisyah subsequently played pranks over the next few days from Jan 6-9 as well as on Jan 15, and was paid 650 ringgit (USD 165) a day for her work and taxi fare.

The pranks were carried out at the Kuala Lumpur airport as well as two hotels and two shopping malls in the city, Gooi said during cross examination of chief police investigator Wan Azirul Nizam Che Wan Aziz.

Wan Azirul agreed with Gooi that Aisyah had also told police during questioning that James gave her 1,500 ringgit ($381) on Jan. 16 to purchase a flight ticket to Phnom Penh, Cambodia. He also agreed that Siti referred to herself as "Alice" in her mobile text messages with James.

But he was evasive at many points during questioning, saying he was unsure or couldn't remember details. Wan Azirul also said he didn't investigate the photos and videos that Aisyah took of James on her mobile phone as well as the Phnom Penh flight details, items which the Indonesian had downloaded on her Facebook page. 

Gooi told reporters later that Aisyah's mobile text messages and calls made to James showed it was consistent with the women's contention that they were duped by suspected North Korean agents into believing they were playing harmless pranks for a hidden TV show and didn't know they were poisoning Kim.

"People may lie but circumstances will not lie. We are telling the court that this girl was tricked into playing pranks and persuaded to go to the airport on Feb 13.  It's up to the prosecution to prove murder," he said.

Gooi also slammed Wan Azirul for his "lopsided investigation" into the case and said the policeman was being uncooperative in court and appeared reluctant to give details in his testimony.