Mr Anusorn insisted that the caretaker government and the Pheu Thai Party had nothing to do with the bombings and condemned the attackers, accusing them of trying to incite unrest.
He said it is unnecessary for the caretaker government to stir violence because it has nothing to gain from such action.
The spokesman argued there are two possible outcomes following the grenade attacks.
The first is that violence will be curbed as the Centre for the Administration of Peace and Order (Capo) introduces more stringent security measures to protect rally sites and the public help the authorities find those responsible for the violence, Mr Anusorn said.
The other potential scenario is that violence escalates because the Bangkok Shutdown campaign has failed to work as the People’s Democratic Reform Committee (PDRC) expected, he said.
The caretaker government is still strong and the last-ditch option for the PDRC would be to incite violence at any cost, the only way to trigger another military coup, he added.
Pheu Thai deputy leader Virote Pao-in agreed that those responsible for grenade attacks against protesters wanted to incite violence and put the blame on the caretaker government.
But he said he did not believe the bombers were part of the anti-government protest and called on police to quickly find the suspects and take legal action against them, to make it clear to the public who is behind the violence.