Feeling good in working life is closely related to happiness in business life, family and social life. The working individuals generally want to feel good, to be successful and to be useful to themselves and their environment. However, job stress is an important obstacle in this regard. Stress is the developments that generally occur due to internal or external stimuli and negatively affect the normal life of the individual. As there are many causes of stress, factors such as exposure level and personality traits can be determinative on the effect. The stress that employees experience depending on the developments in business life is accepted as work stress. Each job has its own difficulty as well as the level of stress it reveals. The job stress experienced by law enforcement units is fed from a wide range of sources and has a wide range of effects. Stress is basically a bodily function that will be explained later in this chapter, to provide the necessary energy to the living creatures in the face of challenging and vital events, to overcome these challenging situations and to continue their lives. However, research shows that the chronic persistence of stress for long periods of time goes beyond the task of performing a useful function by providing the body with the necessary energy and consumes the body's resources, starts to disrupt the normal functioning of the body and causes various physiological disorders. In this study, explanations were made about the concept of job stress and stress management, which negatively affects both work and private functionality of employees.