In our life, technology is very important. There are various technologies such as Artificial Intelligence, Machine Learning, Deep Learning, Cloud Computing, Internet of Things (IOT), Block Chain Technology, Natural Language Processing(NLP), Data Science, Image Processing etc. They are expected to become more widespread in their adoption and use, making them essential components of the future global Internet worldwide. Due to the lack of security in our society, a lot of crimes such as harassment, sexual abuse, kidnapping, unfair treatment, lack of justice due to corruption and harassment, etc. Occur here, one aspect of precautionary measuresis discussed on how to reduce crime and ensure better security and privacy of people. This case study discussed how these technologies can be integrated and used to develop an application that provide better features and helps to reduce crime in our society. Several existing and new application models were explained. With the help of this application updates of crime time will be sent to the family members of that person, and also to the police, which will help to protect person in time, and it is also a help for everyone to get justice and victim and proper punishment. This can be done to make android and smartwatch application which is cost-effective by networking sensors and existing system like smartwatch in which the application is to be installed. When a person in a problem and his mind was not getting any ideas for the application how to enable his phone or smartwatch for working all these functions. For solve these problem, we offer some functions, such as activation by voice command activation, via a button and the most the important for the smartwatch, which is to activate the application via heart rate measurement and step counting, etc.

Keywords : IoT, Cloud computing, Smart watch application, Web application, android application.