On October 25, as we know, general stores and supermarkets will be equipped with infrared detectors, in addition to remind customers of the goods not yet also can play a role in preventing theft.

Although the supermarket has infra-red alarm, but for the culture of the thief, still swaggering shuttle between the alarm. According to the Hangzhou daily newspaper reported on October 18, police found a suspicious man in a patrol, carry extra large black bag in the supermarket through interrogation, police found that there was a large stainless steel barrel, signs were found inside barrels did not cut clothes and without breaking the Wu Liang ye.

When asked why they want to carry such a prominent stainless steel barrels for stealing, the man said "infra-red alarm stainless steel barrels can block the supermarket. "He asked physics students. By further understanding found that Zhang lost his savings by gambling in Macao on May of this year, still owed a hundred thousand of Yuan debt and poverty. On October 16, he came to Hangzhou on business, mind thought of stealing to sell debt in a hot crooked idea.

10月25日消息，我们知道，一般的商场和超市都会配有红外线报警器，除了可以提醒顾客有商品尚未付款外还能起到防止盗窃的作用。

虽然说商场超市都有红外线报警器，但对于有文化的小偷而言，照样可以大摇大摆地穿梭于报警器之间。据杭州日报报道，10月18日下午，民警在巡逻过程中发现一可疑男子，随身携带超大号黑色旅行包在逛超市，通过现场盘查，民警发现里面有一只超大不锈钢桶，桶内发现标牌未剪的衣服和未拆封五粮液。

当被问及为何要携带这么显眼的不锈钢桶进行偷窃时，男子表示“不锈钢桶可以屏蔽超市红外线报警器。”他专门请教过学物理的同学。通过进一步了解发现，原来张某今年5月在澳门因赌博输光了积蓄，还欠下十几万元的债，生活窘迫。10月16日，他来杭出差，头脑一热就想到了偷东西变卖还债的歪主意。