However, the number of youngsters to face charges will depend on investigation reports.
Meanwhile, a source from the security sector said rumours of the Army getting ready to launch a coup are fake as the political situation is not critical at the moment.
As for the planned protest outside the Crown Property Bureau on Wednesday, police say protesters will be handled in line with law and that the Army will not be involved.
Bangkok police chief Pol Lt-General Pakapong Phongpetra said police are not concerned about the protest and officers have been instructed to not carry weapons when controlling the rally.
He said there are 107 cases since January and that legal action against participants in the November 17-18 protest is underway.