Coronial law, Death in the course of police operations, Cause and manner of death, Sudden death of detained person during struggle with arresting police, Whether due to 'excited delirium', 'positional asphyxia', or some other cause or combination of causal factors, Whether apprehension lawful, Whether excessive force used, whether method of restraint complied with standard police practice and training, Whether actions of police caused or contributed to causing death