If you’re doing CPR they’re effectively dead before you start. If you’re the only one there, no witnesses unless you manage to save her. If you’re not alone, you should tell them you’re going to start CPR and order them to call 911 or 999 or whatever. Or volunteer to call while they start compressions. Then you can take over/take turns and vouch for each 's intentions.
If you’re doing CPR they’re effectively dead before you start. If you’re the only one there, no witnesses unless you manage to save her. If you’re not alone, you should tell them you’re going to start CPR and order them to call 911 or 999 or whatever. Or volunteer to call while they start compressions. Then you can take over/take turns and vouch for each 's intentions.