Zhang Hui, who works for a multinational company in Shanghai, said misbehavior by Chinese tourists had blunted her desire to travel.

"I never make trips during public holidays because I can imagine the chaos, the garbage ..., the commotion in places that should be peaceful, and disturbances caused on trains or flights," Zhang said.

"However, I'm not sure whether this new measure will work, just like no-smoking signs in public areas. And I'm still not clear how the behavior of Chinese tourists will be supervised worldwide."

Zhang Lingyun, deputy dean of the tourism college at Beijing Union University, has kept a close watch on the issue since the flight from Bangkok had to turn back. He said he can understand the motivation behind the new measure, but still doubts if it will be effective.

"It will be very difficult to operate. Take obtaining evidence, for example. Behavior that breaches the law won't be too difficult to define, but cases that involve morals will be," Zhang said.

"Some forms of misbehavior listed in the new measure are already banned under other laws. For example, historical relics are protected by the Cultural Relics Protection Law.

"I think we don't need another measure in this area. Cases involving morals can only be resolved through education and with proper guidance.

"Personal records should be dealt with carefully without violating personal privacy."