But Korkaew expressed confidence that the court would not rule that the amendments were tantamount to attempts to toppling the ruling system and in violation of article 68.
Korkaew said he expected that the court would rule that the amendments could be made on an article-by-article basis.
He said that in the worst case scenario, the court would rule that the amendments were efforts to topple the Constitutional Monarchy.
If that proved to be the cases, civil war would erupt, he said.
Korkaew said the government would not accept such a ruling and the government's supporters would retaliate against Constitution Court judges by filing complaints with the police accusing the judges of sedition.
He said if police refused to arrest the judges, the people would take the law into their own hands and try to arrest the judges.
Korkaew said the elite would mobilise their supporters to protect the judges and the people of the two sides would clash.
Korkaew said police would not be able to control the situation so the military would stage a coup. After the coup, the people would come out to wage a civil war against the military, Korkaew added.