The red-shirt movement is planning to stage a rally outside Bangkok Bank's headquarters on Silom Road on Friday afternoon to to expose the bank's alleged close ties with Privy Council chief Gen Prem Tinsulanonda.
The red shirts would also unveiled an allegation that a privy councillor with initial "A" owns a land in a forest reserve in Loei's Dan Sai District.
Nattawut also said the DAAD would also file a complaint with the Revenue Department to check tax records of Prem and has vowed to reveal more evidence on the cheques paid by the 'Group of 11' to the privy council chief.
Nattawut said he had evidence that the Group of 11 especially Kalyani Panchet of MCC Sithipol Group has consistently paid a number of cheques to Prem. "If the money is paid for charity or donations, why does she have to pay it indirectly through Prem,'' he said.
He said Wat Suan Kaew abbot Phra Phayom did not give him the copies of the cheques and urged his opponents not to blame the abbot.

