What is the basis for the prosecution of an organisation under the Corporate Manslaughter and Corporate Homicide Act 2007?

Under the Corporate Manslaughter and Corporate Homicide Act 2007, an organisation will be guilty of an offence if the way in which its activities are managed or organised causes a person's death, and amounts to a gross breach of a relevant duty of care owed by the organisation to the deceased. This will be the case only if the way in which the organisation's activities are managed or organised by its senior management is a substantial element of the breach. An organisation's "senior management" is defined as the people who play significant roles either in making decisions about how all or a substantial part of its activities are to be managed or organised, or in the actual managing or organising of all or a substantial part of those activities.