The Sabah Wildlife Department will seek a new remand order to further investigate the suspects.
Farhash Wafa Salvador Rizal Mubarak and Haziq Aziz were among several people arrested last week.
The girl with learning disability was found with injuries and bruises on her back, left wrist and neck.
Two businessmen arrested in Shah Alam yesterday have also been remanded for four days.
Police however say Perak PKR chairman Farhash Wafa Salvador Rizal Mubarak is still under custody.
Lawyers for the suspects say the remand procedures have not been followed while the six-day duration is too long.
The duo are alleged to have received a bribe in return for extending the services of a contractor.
Magistrate's Court frees another two on MACC bail.
17 others are freed on bail.
The police need one or two more days to complete their investigation.
They were arrested at an apartment in Taman Mutiara, Jinjang, on Sunday.
The 50-year-old suspect was nabbed at a restaurant in Kajang yesterday.
This followed police reports lodged by 23 victims in Sarawak.
Azwanddin Hamzah is being investigated for allegedly threatening to storm the Klang Police Station if the culprits responsible for a fireman's death were not nabbed.
Boy was found unconscious and rushed to hospital where doctors declared him dead.
He had allegedly received gratification in the form of house renovations costing RM400,000.
Adi Azuan is being held to assist in MACC's investigations into alleged bribery.
The four, aged between 21 and 24 years old, are being investigated for attempted murder.
Police are also seeking 28 witnesses to facilitate investigations.
A five-day remand order was also issued against six other individuals, including a businessman, in connection with Seafield temple riots.
The couple is being investigated for murder following the death of a three-year-old.
The 12, including three women, will be remanded for three days.
Cops remand son who says he changed his mind about suicide pact to jump into Sungai Arau after consuming poison.
The 25-year-old trader was remanded after surrendering to the police.