Crime Suppression Division police issued a summons to the retired general and to Sondhi Limthongkul, a co-leader of the People's Alliance for Democracy (PAD), the yellow shirt movement, asking both to acknowledge charges of inciting rebellion and coup by next Wednesday.
The pair said they have not yet received the summonses but Sondhi said he would ask the police to postpone the date, complainting it was an unfair treatment. Gen Boonlert said he would report to police investigators as soon as he received the summons.
Both summonses were issued after a lawyer representing the United Front for Democracy against Dictatorship (UDD) asked the police to take legal action against Mr Sondhi and Gen Boonlert for inciting rebellion and coup. The lawyer also submitted recordings of the Pitak Siam rally on Sunday and reports about the protest on the internet and in the media as evidence.
Gen Boonlert repeated his announcement that the next rally could be held within three weeks or a month from the first gathering. The next rally is expected to draw more participants than the first, which he claimed attracted as many as 20,000 supporters, although police estimated a lower number.