right to have investigation of claim of mutual combat in homicide case - Google Search.
WHAT YOU NEED TO KNOW ABOUT STRANGULATION/CHOKING
• Only eleven pounds of pressure placed on both carotid arteries for ten seconds is necessary to
cause unconsciousness. However, if pressure is released immediately, consciousness will be
regained within ten seconds. To completely close off the trachea, three times as much
pressure (33 lbs.) is required. Brain death will occur in 4 to 5 minutes, if strangulation
persists.
• Victims may have no visible injuries whatsoever, with only transient symptoms — yet
because of underlying brain damage by lack of oxygen during the strangling, victims have
died as long as several weeks later.
• Because of unforeseen consequences of injuries from a strangulation attempt that may appear
minor to the untrained, police officers at the scene should radio for medics for a medical
evaluation of all victims who report being strangled.