In Green v. Van Buskirk, the Supreme Court of the United States held that a state court could not issue an injunction to prevent a federal officer from performing his duties under federal law. The case arose when William Green, a revenue collector for the Internal Revenue Service in Ohio, attempted to collect taxes on certain distilled spirits owned by John Van Buskirk and stored in warehouses located within Ohio. In response, Van Buskirk obtained an injunction from an Ohio state court preventing Green from collecting any taxes on those goods until further order of the court. The Supreme Court reversed this decision and held that it was beyond the power of any state court to enjoin or interfere with officers appointed by Congress while they were engaged in executing acts authorized by Congress as part of their official duties. This ruling established important precedent regarding states’ ability to interfere with federal officers carrying out their responsibilities under federal law.

In Green v. Van Buskirk, the Supreme Court was asked to decide whether a state court could issue an injunction against a federal officer in order to prevent him from executing his duties under federal law. The majority of the Court held that it could not, reasoning that such action would be contrary to the Supremacy Clause and undermine Congress’s power over national matters. Justice Field dissented on this point, arguing that states have concurrent jurisdiction with respect to certain areas of law and should therefore be allowed some degree of control over how those laws are enforced within their borders. He further argued that allowing states to issue injunctions against federal officers is necessary for them to protect their citizens from potential abuses by those same officers while still respecting congressional authority over national matters.