The 32-year-old man, with six previous records, is believed to specialise in making bombs that can be detonated using a remote control, Penang police chief Chuah Ghee Lye told a media conference here today.
He said during the raid, conducted at about 11am, police also seized various types of drugs and a piece of PVC tubing.
“The PVC tube, measuring 2.66m long, contained four pipe bombs allegedly made by the man,” he added.
He said police also seized transmitters, remote controls, welding equipment, electro-mechanical components, a switchboard, eight rounds of shotgun ammunition, a kerambit (curved knife) and drug paraphernalia.
He said the drugs seized included heroin (12.65g), ketamin (18.35g), syabu (3.26g), ecstasy pills (24) and caffeine (1 kg).
He said the man and his female friend, a 42-year-old married woman, would be under remand for seven days to facilitate investigations.