While on trial, the court provided many descriptions of the alleged activities that Haji Sulong had carried out to incite unrest amongst the people. This include accusations that state that he held meetings which invoked "arousing rebellious feelings among the people almost to the point of creating unrest in the kingdom". According to Thanet, the most serious accusation was that he incited the people to seek for self-government with the intention of inviting Tengku Mahmud Mayuddin, who was the son of the last raja of Pattani, to preside as leader over the four southern provinces. On top of this, the prosecution also stated that Haji Sulong had recommended that Islamic law be implemented and if the government did not comply to the said demands, Haji Sulong would then urge the Malay population to make their complaints heard until the government did something about it. Haji Sulong was convicted and spent time in jail until 1952 and after his release, he was ordered by the government to give up his public activities and subject himself to checks by the police on demand. The prosecutor in that trial wanted to press for a heavier sentence, citing evidence that Haji Sulong was planning something bigger to the scale of a rebellion. Originally as a result of the state's prosecution citing these evidences, the sentence had been longer but due to the willingness of Haji Sulong to co-operate in the investigations, the court reduced the sentence to four years and eight months. In 1954, Haji Sulong, his eldest son Ahmad and some of his associates were told to report to a police station at Songkhla. Upon leaving to report to the station, they were never seen or heard from again. After his disappearance, his family inquired about his whereabouts but never got any answers. In 1957, his son Ameen Tokmina ran for parliament in the elections in the hope that a position in the government could help him look for more information.