The medical environment for patients is surrounded by technical machines products and materials. On occasion an alarm does not go on and the patient is not detected in time to be rescued when the cardiac monitors show an adverse event. On other occasions a patient may suffer burn wound from an uncalibrated radiation machine. Other mishaps occur infrequently in hospital settings. For example an infusion may be contaminated and cause serious consequences for the patient which may lead to death or injury. We are experts in evaluation of the patient’s environment and assess whether or not, ward disinfection and hygiene contributed to patient injuries.