Doping

I get what you're saying, but equally if something happens like your sister is raped, father has heart attack etc is it really fair to doubt an athlete not being able to update their whereabouts records if they are able to prove the (unexpected) event with hospital/police records and statements to the effect that you were there from some kind of trusted third party like a police officer? There's few professions or people beyond presidents that have that kind of demand put on knowing their exact location at all times.