Accidents and near-accidents should not occur and should not be repeated. If they do happen, however, the causes must be clearly determined. The usage of a machine will change often during its service life. If the safety measures are not adapted to the changing usage, it is possible that protective measures will no longer be sufficient. The operator might also deliberately override the measures. As independent specialists, the experts at SICK investigate these incidents and prepare concrete suggestions for how accidents or near-accidents can be avoided in the future.