Disfigurement of the body, strips, shaving of the head, one of these or all combined, these are said to be the punishments that should be inflicted on envoys. But I have not heard of the punishment of death being a penalty of the envoy. as
वैरूप्यमङ्गेषु कशाभिघातो मौण्ड्यं तथा लक्षणसंनिपातः एतान्हि दूते प्रवदन्ति दण्डान् वधस्तु दूतस्य न नः श्रुतोऽस्ति॥