Anti-ligature devices are implemented to prevent self-harm, either intentionally or accidentally. They are commonly found in places like hospitals, care homes, schools, and nurseries without being noticed. These devices come in various forms like door knobs, window frames, hooks, and handles, and are tailored to the individual's circumstances. Anti-ligature devices enhance security in households, offices, and care homes, where some elderly or infirm residents have difficulty accessing conventional keys. They also ensure only authorized access within an environment, such as restricting drug access.