PL MPs have objected to Police Commissioner Angelo Gafa being called to testify before the Public Accounts committee (PAC) over the Electrogas contract.
PL MP Alex Muscat argued that there was no need to summon Gafa as the National Audit Office's probe into the contract had not found any criminal wrongdoing.
Auditor General Charles Deguara said that his office is not an investigative body, but rather scrutinises documents and procedures over good governance.
He also said that all of his reports are sent to the Police Commissioner.
PN MP Darren Carabott, who Chairs the PAC, said that establishing whether the police are investigating the contract is in the public interest.
The PN MPs indicated their intent to seek a ruling from Speaker Anglu Farrugia on whether Gafa can be summoned.
The committee members did, however, agree to summon former Enemalta board members, in addition to former minister Edward Scicluna and Electrogas director Ray Fenech.