Mr Tarit, a member of the Centre for Maintaining Peace and Order, said the DSI had notified the CMPO of the action.
Although the freeze had been lifted, the CMPO would continue to watch the financial movements of these accounts since the 38 were suspects wanted under arrest warrants, Mr Tarit said.
Mr Tarit said following the PDRC's Bangkok shutdown operation a number of government offices had been closed by the protesters. However, the CMPO managed to reopen 53 offices for public services.
After the Civil Court issued an order banning the CMPO from implementing its orders, the PDRC had returned to lay siege to the Customs Department, Foreign Ministry, Energy Ministry, Finance Ministry, Revenue Department, Public Works Department, Revenue Department, Voice TV, M Link Asia Corporation Plc and Shinawatra Tower 3.
The CMPO would appeal against the Civil Court's order in the hope it will allow a resumption of full operations, Mr Tarit said.