Our society keeps growing with a large number of complicated machines and systems, while we are spending our diverse lives. The number of aged people has been increasing in the society. It is more likely than ever that we are involved in dangers, accidents, crimes, and disasters. Securing and supporting our daily life, building reliable infrastructures against large scale disasters, and preventing unexpected human errors are crucial issues in our highly developed complex society. The systems theory can provide modelling, decision analysis and management for safety and security as well as fault detection and reliable control for the design of fail-safe, fool-proof machines and systems. If the human nature is analyzed and treated properly in the process of designing machines and systems, we could create safer, more reliable, and more intelligent machines and systems that can support our society and give us no anxiety and no uneasiness. Hybrid systems modelling human behaviours and services for human could give proper examples in this respect. Robotics for safety and security, safety recovery systems, visual surveillance and monitoring, and transportation systems for safety and security, those will provide powerful tools for safe, secure, and reliable systems to achieve peaceful society. Key features: Towards a new science and its practical applications Analysis of humans contributing to system designs Evaluations of systems in the aspects of sense of security and feeling of easiness