Mohamed Amin Mohamed Razali led a band of 29 Al-Ma'unah men in a mission to overthrow the Malaysian government. The group, included a serving Major in the Royal Malaysian Air Force. They dressed up in uniforms of senior army officers and claimed to be making a surprise inspection of the 304th Malaysian Army Reserve (Rejimen Askar Wataniah) camp at the Temenggor Dam in Gerik, Perak. The group tricked their way and raided the armouries. [6]
They had previously obtained military fatigues from various outlets and securing three units of Pajero four-wheel-drive vehicles. The Pajero, of similar make to that used by the Malaysian Army was painted green and given false number plate at a house rented in Kati, for the specific use as a transit point for the group.
In the early hours of July 2, 2000, 20 members of the Al-Maunah group got into three Pajero vehicles and proceeded to Post 2 Kuala Rhui Camp at 2.50 a.m. and then to Camp Bn 304 Rejimen Askar Wataniah at 4.15 a.m.
They talked their way into the Camps by feigning a surprise inspection, to conduct emergency spot checks of all the ammunitions stored at both camps. Impressed by the manner in Amin and the others conducted themselves and assured by the presence of the three Pajero vehicles bearing the military registration numbers beginning with the alphabet 'Z', the military personnel at the two army camps were duped into allowing the group to take possession of all but one of the various army weapons, ammunitions and other army equipments including communication equipments and some even helped the group to carry the weapons into the three Pajeros. They took away a huge cache of firearms and ammunition, including 97 M16 assault rifles, two Steyr AUG rifles, four GPMGs, six Light Machineguns, five grenade launchers, 182 M16 magazines, eight extra barrels of GPMGs, three extra barrel of LMGs, 26 bayonets, 9,095 rounds of 5.56mm and 60 rounds of 40mm ammunition.
27 of them hid themselves in the jungle in Bukit Jenalik, Sauk, in Perak. Amin then distributed the seized arms to his members for practice. The unusual sounds of firearms alerted local inhabitants who alerted the Police. The group made preparations for the operation, including collecting food supplies and taking them to their base in Bukit Jenalik. The food dumps were to keep the base going for about three weeks. They had obtained military fatigues from various outlets and securing three units of Pajero four-wheel-drive vehicles. They also collected weapons such as parang (machete) and cross bows for the purpose of their mission.
Police threw a containment cordon of Bukit Jenalik. A number of security personnel were deployed to penetrate the Al-Ma'unah's camp. However, two of the police personnel Sergeant (Sarjan) Mohd Shah Ahmad and Detective Corporal Sanghadevan, as well as civilian Jaafar Puteh and an army personnel, Trooper Matthews anak Medan, were taken hostage by Al-Ma'unah. In a radio communication with the authorities, the group stated their intention to cordon off Kuala Lumpur if their demand for Prime Minister Mahathir Mohamad to resign in 24 hours was unmet. Jaafar Puteh was a civilian who wandered into their camp while looking for durian fruit.
Mohd Shah Ahmad related during the trial that over the 4 days, the security forces personnel were abused and tortured. They were made to dig trenches along the sides of Bukit Jenalik to serve as a defence in the event of an attack on the camp. At night they were tied to a durian tree. It was that Mohd Shah Ahmad and Sanghadevan buried Trooper Matthews in one of these trenches. Trooper Matthews was apprehended by Jemari Jusoh and when the Amin realized the identity of Trooper Matthews, Amin tortured Matthews by shooting his leg. Amin then ordered the Jemari Jusoh to shoot Trooper Matthews in cold blood.
On the morning of July 5, 2000, a member of Al Ma'unah, Abu Bakar Ismail was shot by the security forces. In retaliation, the Amin and his his followers returned fire against the security forces. During this cross fire, Sanghadevan was shot dead. Sanghadevan was buried next to Trooper Matthews by Mohd Shah and Jaafar Puteh.[7]