Do you think it is necessary to smell the water with your nose in Chengdu subway security inspection?

The method of smelling water with nose is mainly used in Chengdu subway security inspection to detect whether it carries suspicious items or dangerous items such as liquid explosives, because liquid explosives usually have a special smell. This method may be more convenient and efficient than the traditional security inspection method.

However, there are some problems in the method of smelling water with nose. First of all, this method requires the ability and experience of security inspectors to smell water, otherwise it may be misjudged. Secondly, smelling water through the nose may bring some health risks to security inspectors, such as inhaling harmful gases.

To sum up, the security inspection method using nose to smell water can be used as an auxiliary means, but it cannot be carried out by this method alone. We also need to use various means, such as X-ray detection, metal detectors and so on. In addition, we also need to protect the health of security inspectors to the greatest extent on the premise of ensuring safety.

In addition, the security inspection method of smelling water through the nose has also caused some controversy and discomfort among the public. When security personnel sniff water to check whether they are carrying dangerous goods, some passengers feel uncomfortable and invade their privacy. Therefore, it is necessary to balance the public's security needs and protect personal privacy. At the same time, some measures need to be taken, such as open and transparent security standards and reasonable security procedures, to eliminate public discomfort and doubts.