铁卫们查案之时(shí ),经常要通过密探向刑部汇报情况,这(zhè )种时候(hòu )断无临(lín )时去(qù )找纸笔的道(dào )理。因而,他们执(zhí )行公(gōng )务时(shí ),身上便会(huì )带上(shàng )可以(yǐ )随时(shí )书写的炭(tàn )笔和(hé )纸张(zhāng ),以方便自(zì )己使用(yòng )。此刻听(tīng )常不易叫献纸笔,马上便有人走上(shàng )前去,将纸笔(bǐ )交给了太子。太子便(biàn )由绑匪(fěi )头子押(yā )到(dào )房间的桌(zhuō )子那儿,写了一份承诺书出来。盖上印(yìn )鉴(jiàn ),