Because a business needs to be safe. The length of time that security patrol services and security guard must work for the business is very important. Occasionally, like when a shopping center is opened and some well-known actors or actresses have to open it for security reasons for two or three days, there is a need for extra men to protect these actors or actresses from harm. They will be hired for a few days until the event is over. Thus, the length of a security official's contract is important for a business. The reason this is important is that it will help the organization balance its costs of making things. Efficiency in a security framework helps the company meet its security goals and also protects the company's profits. There are two types of security units: private security units and private security guard services companies, both of which can be hired. In order for the organization to choose one of these units, it must follow its own rules.