Facts: Mr. B arrives at work as a crane operator under the influence of cocaine. He climbs onto his construction crane. During his shift, he injures several people and destroys part of the building under construction after deliberately using the crane to smash several propane gas cylinders against the building, which then detonate. His employer, B-GmbH, which has to justify itself to its client, wants to dispense with A's services in future.

Question: Which areas of law does this case fall under?