English to Italian Law/Patents Insurance

I understand this is simply an investigation a company carries out whenever an accident occurs so as to prevent further accidents, but I am not sure whether there is an official translation or not.
"What is a loss?
A loss is defined as an undesired event or occurrence, resulting in physical harm, property
damage, and/or financial loss. Financial loss includes both the insured cost of losses and the
uninsured costs such as loss of production, management time and trained personnel.

What is a loss investigation?
A loss investigation is a systematic effort to determine what happened, how and why it
happened and what must be done to prevent it from happening again. PREVENTION, not
blame, is the main purpose for conducting an investigation.

Who investigates the loss?
Normally, supervisors trained in loss investigation are the best qualified people to conduct the
investigation of losses that happen in their departments. Why? Because of the very nature of
their jobs, supervisors know the employees and their job skills, experience and attitudes."