Rolling coal is the practice of tampering with a vehicle’s emissions control system, causing it to spew black clouds of sooty exhaust.

  • FlowVoid@lemmy.world
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    2 年前

    States and local PDs can decide on policies, ie which crimes they want to arrest and which they will let the federal government enforce. For example some states have a policy of not enforcing federal marijuana laws. But this is just a matter of efficient use of resources. They always could arrest someone for a federal crime.