gwd3中两个关于现在分词用法的问题

1291473997

A study by the Ocean Wildlife Campaign urged states to undertake a number of remedies to reverse a decline in the shark population, including establishing size limits for shark catches, closing state waters for shark fishing during pupping season, and requiring commercial fishers to have federal shark permits.
这句话里的including是做伴随状语修饰还是作定语修饰remedies.现在分词作伴随状语时不是应该只能修饰前面一个句子的主语study吗？还有如果做定语，那么可能修饰population，也容易混淆。

Because of a law passed in 1933 making it a crime punishable by imprisonment for a United States citizen to hold gold in the form of bullion or coins, immigrants found that on arrival in the United States they had to surrender all of the gold they had brought with them.
上面这个句子中的making是作为定语修饰law吗？那么it指代的是什么？

求指导，战五渣已跪？

enkyklios

可否给出原题及OG的答案