Taipei police have arrested a Taichung laborer who taught himself to modify firearms and stashed them in a banana grove — a win for law enforcement cracking down on illegal weapons.

• A man in his 40s, a part-time construction worker with prior gun and drug records, bought firearms online and modified them at home.
• Taipei's Zhongshan police spotted the suspicious online purchases during internet patrols and traced the deals back to him.
• A search of his home in Taiping District, Taichung turned up 10 hidden guns in the banana grove out back.
• Testing found 4 were working modified weapons, including copies of a revolver and a Glock pistol; the other 2 were replica guns.

Outlook: Police say they will keep tightening online monitoring and tracing illegal gun sales, warning the public against buying or modifying weapons.