March 1
PetroSaudi International (PetroSaudi) refutes allegations that it had siphoned funds from 1Malaysia Development Berhad (1MDB).

It is believed PetroSaudi, an oil services and production company based in Saudi Arabia, was responding to an article by Sarawak Report titled "Heist of the Century – How Jho Low Used PetroSaudi As 'A Front' To Siphon Billions Out Of 1MDB!" that was published on Feb 28.

March 6
A special task force is set up to probe the alleged mismanagement of funds in 1MDB.

The initial task force was made up of the Royal Malaysian Police (RMP), the Malaysian Anti-Corruption Commission (MACC) and the Attorney-General’s Chambers (AGC).

July 3
The Wall Street Journal (WSJ) and Sarawak Report publish reports alleging funds from 1MDB were transferred to Prime Minister Datuk Seri Najib Razak's personal account.

July 4
Attorney-General Tan Sri Abdul Gani Patail says authorities obtained several documents during an investigation held at the offices of the three companies linked to the alleged transfer of funds to the Prime Minister’s account the day before.

He says the raid on SRC International Sdn Bhd, Gandingan Mentari Sdn Bhd and Ihsan Perdana Sdn Bhd was done by a special task force which comprised of the AGC, MACC, RMP and Bank Negara Malaysia (BNM).

Abdul Gani also confirms the task force had begun its investigation on the 1MDB issue and had delivered to him a number of documents to be reviewed including those relating to the alleged distribution of funds to the Prime Minister’s account.

July 28
The service of Abdul Gani as the A-G is terminated effective July 27 due to health reasons, according to Chief Secretary to the Government Tan Sri Dr Ali Hamsa.

In a statement, Dr Ali says former Federal Court judge Tan Sri Mohamed Apandi Ali has been appointed as the new A-G effective the same day.

July 29
The five independent panels that monitor the MACC call for the special task force assigned to investigate 1MDB to be given the freedom and space to conduct the probe without fear or intervention by any party.

In a joint statement, they demand that the integrity of the MACC as an independent anti-corruption commission be upheld without compromise.

The chairmen of the five panels are Tan Sri Abu Zahar Ujang (Special Committee on Corruption), Tunku Abdul Aziz Tunku Ibrahim (Anti-Corruption Advisory Board), Tan Sri Hamid Bugo (Operations Review Panel), Tan Sri Wilson Baya Dandot (Complaints Committee) and Tan Sri Johan Jaaffar (Consultation and Corruption Prevention Panel).

July 30
MACC denies that its senior officers were involved in any conspiracy to topple the government.

The commission says actions taken by its senior officers were clearly carried out as part of performing their duties as MACC officers.

Aug 1
Three people are detained by police to assist in the investigation into 1MDB. One is a Tan Sri who is an ex-MACC advisor, another is an officer with the AGC, while the third person is MACC deputy public prosecutor Ahmad Sazilee Abdul Khairi.

Special Branch raided Ahmad Sazilee's office and seized several documents related to 1MDB as well as a laptop.

Aug 3
In a media statement, MACC clarifies that funds amounting to RM2.6 billion supposedly deposited into Najib's personal account, were campaign donations and not funds from 1MDB. The commission says this was based on its investigation into SRC International.

Meanwhile, MACC director (Special Operations) Datuk Bahri Mohamad Zin says his office had nothing to do with the leak of documents linked to the investigation into SRC International, an entity belonging to 1MDB.

He says he believed that the leaked documents were reproduced by certain parties.

Aug 4
About 100 MACC employees attend special hajat prayers at the commission’s administrative building in Putrajaya.

The "Majlis Solat Hajat Perdana" is held to ask for strength and blessings for the commission to continue carrying out its responsibilities to combat corruption.

Apart from Putrajaya, MACC branches in several states also hold similar prayer sessions.

Aug 5
MACC chief commissioner, Tan Sri Abu Kassim Mohamed is confirmed to be on leave until the end of the coming week.

Later in the day, the MACC issues a statement saying it will ask Prime Minister Datuk Seri Najib Razak to provide an explanation over the RM 2.6 billion donation deposited into his personal account.

The statement also reveals the donor was from the Middle East, but did not provide the donor’s identity.

In the same statement, MACC also explains why their August 3 statement on the source of the RM2.6 billion funds were not made through the special task force. The commission says they had been advised by the A-G that there was no longer any need for the multi-agency task force to probe 1MDB. Instead, the four agencies of the task force will run investigations separately and report back to the A-G.

The statement also says MACC is involved in investigating the issue revolving SRC International while the police is fully in charge of investigating 1MDB.

The controversial RM4 billion funds related to SRC International is also being investigated by the MACC and it is conducted separately from the RM2.6 billion fund probe.

Meanwhile, two MACC officers who had been called by the police before, were arrested after giving evidence at the Putrajaya district police headquarters.

Both were then taken to the MACC headquarters for investigation by the police.

Aug 7
Two MACC directors have been transferred to the Prime Minister's Department.

According to sources, special operations director, Datuk Bahri Mohamad Zin and strategic communications director, Datuk Rohaizad Yaakob were transferred with immediate effect.