《睡虎地秦墓竹简·其于部分·法律答问》
 将珠玉偷运出境以及卖给邦客的，应将珠玉上交内吏，内吏酌量给予奖赏。 
可以購之？其耐罪以上，購如捕它罪人；貲罪，不購。
The pearls and jade that are smuggled out of the country or that are sold to other countries by the state officials should be given to Neili. Neili rewards the informants based on their contribution. 