for instance , there is a definition about the nation ' s right of preemption in the trading between japan and gaiban (derogatory expression of foreign countries and foreigners ) in genshi ryo (regulations of markets and checking stations ) of yoro-ryo (yoro code ). 例えば、養老令の関市令には外蕃に対する無条件の国家による先買権の存在が記されている。
although the imperial court issued the prohibition against these kinds of acts that violate the nation ' s right of preemption , it did not have much effect on it since many of the aristocrats who enacted the prohibition could not curb the desire for karamono , and violated the prohibition by themselves . 朝廷はこうした振る舞いを国家の先買権を犯すものとして禁令を出したが、禁令を制定する貴族が唐物に対する欲求からこうした違反行為を行った例が多かったために効果は乏しかった。
the nation ' s right of preemption was asserted by the imperial court by either sending people , such as benkan (officials of the dajokan ) or kurodo (chamberlain ), assigned to serve as karamono no tsukai (supervisor of chinese goods ) to the ports of call , or by the government officials (esp . ones of low to medium rank ) directly negotiating and purchasing from the merchants based on the detailed list of necessary goods made by the imperial court . その後、弁官や蔵人を唐物使に任じて寄港地に派遣し、あるいはあらかじめ朝廷から送られた希望商品の明細に基づいて大宰府の官人が直接来航者と交渉・購入する形での国家による先買権の行使を行っていた。
