Correct me if I am wrong, but I think US claims jurisdiction over anything that involves a transaction in USD. And because of the way international payment systems are set up, there always is a USD transaction somewhere in the loop.
If a Danish customer takes his Danish Krones to the bank and sends them to a supplier in Germany in the form on Euros, the transaction goes like DKK → USD → EUR, so US claims jurisdiction over it and enforces its domestic laws on it:
And it doesn't even have to be an international transaction. Even domestic ones sometime run afoul of this limitation, as this Canadian small business owner found out:
Not really. This is how US is able to unilaterally impose sanctions on Iran. Since international transactions go through USD, they have effectively cut Iran from being able to transact with the rest of the world on a meaningful scale. European countries tried to build an alternative to circumvent the need for a USD layer, but it has not been successful. USD's unique position in the international stage allows US to impose its domestic policy on a large part of the world. From Washington Post:
> The power of U.S. sanctions lies in the use of the U.S. dollar in most international transactions. A foreign company that sends its proceeds from trade with Iran through an international bank would likely face sanctions because part of it would be conducted in dollars. An international company with an American employee who has something to do with a transaction, no matter how inconsequential, could also run afoul of U.S. sanctions.
I have heard of this exact thing, but can't find the information about it. I think it was a Matt Levine article?.
I'm so hazy on the details, other than that French nationals were prosecuted for alleged crimes in France because those crimes were denominated in US currency.
Edit: My memory must be wrong - there's a comment below that France will not extradite citizens
I've read that France will not extradite a French citizen. So that's one other place to hide, if you're a French citizen. You won't escape justice that way, I think - if necessary they'll try you in France for a murder you committed in the US - but you'll escape US justice.
Article 3(1) declares that neither State has an obligation to extradite its own nationals, but the executive authority of the United States shall have the discretion to do so. The nationality of the person sought shall be the nationality of the person at the time the offense was committed.
Article 3(2) requires a State that refuses an extradition request solely on the basis of the nationality of the person sought to submit the case to its authorities for prosecution, if so requested by the Requesting State.
However, France is also subject to the European Arrest Warrant, which means they are "precluded from refusing the surrender of their own nationals wanted for the purposes of prosecution, but they may condition the surrender of a requested person on his or her being returned to the issuing state to serve any sentence ultimately imposed". This is obviously only for other European countries, but I bet you could then extradite from such a country to extra-EU jurisdictions simply with political help.
So let's say person X is wanted in the US. They get Country A to emit a warrant for them, A gets X from France, then extradites X to the US.
During cold war, any kind of suspected "socialism" seemly counted as "something to do with USA" because a bunch of people were thrown out of helicopters (literally) when they couldn't be extradited.
It is a trick to avoid prosecution. When no body is found, it is hard to prove the person is dead and therefore hard to prosecute the perpetrators of the murder.
If a Danish customer takes his Danish Krones to the bank and sends them to a supplier in Germany in the form on Euros, the transaction goes like DKK → USD → EUR, so US claims jurisdiction over it and enforces its domestic laws on it:
https://www.icenews.is/2012/03/04/us-confiscates-policemans-...
And it doesn't even have to be an international transaction. Even domestic ones sometime run afoul of this limitation, as this Canadian small business owner found out:
https://www.cbc.ca/news/canada/toronto/square-canada-1.53031...