Corrected entry: I'm not sure what type of mistake you would count this as, but there's no way a policeman/authority of any kind would come to someone's home, tell them their husband has died, and then just leave, giving them a calling card. Even if not to comfort her, there would be formal identifying or other official arrangements to be made.
Knever
29th May 2009
Correction: He gave her his card specifically to make arrangements AFTER she comes to grips with what has happened. That's perfectly plausible.
Knever