The Malaysian police, upon getting permission from the Thai police, will speak to Xavier Andre Justo over his claim he had met with key Malaysian opposition politicians with the intention to sell classified information, Deputy Home Minister Datuk Seri Dr Wan Junaidi Tuanku Jaafar said.

He said it was necessary for the Malaysian police to meet the former executive of PetroSaudi International Ltd (PetroSaudi) to get 'first-hand information' on the disclosure by the Thai police following their investigation of Justo.

"Inspector-General of Police Tan Sri Khalid Abu Bakar will meet Justo upon getting permission from the Thai police, and only then can the investigation be carried out, including calling up the Malaysians involved over the disclosure," he said when contacted by Bernama today.

Bernama had reported Khalid as saying that the Malaysians involved would be asked to give statements on the latest disclosure by the Thai police following their investigation of Justo.

Last Thursday, Thai police confirmed that Justo, a Swiss national, had met with key Malaysian opposition politicians at a hotel in Singapore to sell confidential information on PetroSaudi.

Wan Junaidi said the Malaysian police should be allowed to question Justo before any action was taken against him.

He said he believed that the Malaysians who had been identified would offer their full cooperation in the matter.

He also said the case should be handled carefully so that it did not have any implication on Malaysians as it could undermine democracy and the country's leadership.

The Thai police arrested Justo on June 22 on charges of blackmailing PSI, an international company based in Saudi Arabia linked to a controversy surrounding 1Malaysia Development Berhad (1MDB).

Following the alleged sale of the documents, several emails and documents were published by the Sarawak Report news portal that led to allegations against 1MDB.