This thesis has three main objectives:- 1) to study the  crisis in the precept of   ‘Adinna̅da̅na’ by the teenagers  in thai societies  2) to study the precept of ‘Adinna̅da̅na’ in leading the lives according to Therava̅da Buddhism  3) to analytically study   the ‘Adinna̅da̅na precepts and the moral crisis faced by the  youths in  Thai society.

                From the research, it is found that the problems and the causes of the crisis in the teenagers in Thai society, are : - the family status, the environment of education,  the value in the materials,  the media, the teenages  etc.

The core principles Dhamma for the lifestyle on ‘Adinna̅da̅na Precept are Samma̅-kammanta (Right action)  Samma̅- a̅jiïva (Right livelihood) and Hiri-Ottappa (modesty) which are the tools to combat  permanently the root of all Evils-Roots (Akusalamῡla) including Lobha, Dosa and Moha which are the roots of all evils. To enhance the Samma̅-kammanta  Samma̅- a̅jiïva and Hiri-Ottappa to early childhood will also strengthen the immune  effort to violating the precepts by  the young people.

                From the way how to enhancing Samma̅-kammanta  Samma̅-a̅jiïva with Hiri-Ottappa,
it is found that the mental development and the strengthening of culture in thai societies are the ways which should be serious implemented. Regarding the problems associated with the youth violence and the moral crisis, it is found that, there are no other principles that can prevent this problem from arising directly  because of the severe crisis  coming from the same cause. 
The defense must be used by the same principles, Samma̅-kammanta Samma̅-a̅jiïva  and
Hiri-Ottappa,  because  these principles can be used to prevent the youths from violating the precepts and can help the teennagers  do good things  forever.