ow would this work for federal crimes committed across more than one state jurisdiction? I’m not knowledgeable about law enforcement in general, so there’s a lot I don’t know about here.
You are correct. I thought about this after posting but had to mow some grass.
Crimes on aircraft, interstate crimes, etc., would require the US Marshals.
But in some manner congress should define clearly the US Marshals responsibilities. I have read of several recent cases where the marshalls “assisted local law enforcement”, but the stories made no references as to why,
For instance a truck load of drugs that has traveled from Mexico to NY city is clearly an interstate problem. Yet today a sheriff or a state trooper will arrest and prosecute if they find the truck.
My own opinion is that local law enforcement should avoid assistance from any federal organization unless the situation is desperate.
So you are correct. we need the marshals. The question is to how to prevent them from becoming the FBI or the ATF.
I suspect the only option is to make the head of the US Marshals an elected official. That gives the voters a chance to remove an incompetent or corrupt head of the department.