In the case of Hills v. Exchange Bank, the Supreme Court of the United States was asked to determine whether a bank was liable for the wrongful acts of its employees. The case arose when the plaintiff, Hills, sued the defendant, Exchange Bank, for damages resulting from the bank's employees' negligence in handling his funds. The Court held that the bank was liable for the wrongful acts of its employees. The Court reasoned that the bank was responsible for the acts of its employees because it had a duty to exercise reasonable care in the management of its business. The Court further held that the bank was liable for the negligence of its employees because it had a duty to supervise their activities. The Court also held that the bank was liable for the negligence of its employees even if the employees were acting outside the scope of their employment. The Court reasoned that the bank was responsible for the acts of its employees because it had a duty to exercise reasonable care in the management of its business. In conclusion, the Court held that the bank was liable for the wrongful acts of its employees. The Court reasoned that the bank had a duty to exercise reasonable care in the management of its business and to supervise the activities of its employees. The Court also held that the bank was liable for the negligence of its employees even if the employees were acting outside the scope of their employment.

Justice Field delivered the dissenting opinion in Hills v. Exchange Bank, arguing that a state court's decision should be respected when it is based on an interpretation of its own laws and statutes. He argued that the majority had failed to recognize this principle by disregarding the ruling of the California Supreme Court which held that under California law, a bank was not liable for interest on deposits made after maturity unless agreed upon in writing between parties. Justice Field further noted that while he did not necessarily agree with this interpretation, it was up to Congress or the legislature of each state to decide whether such liability should exist; thus, he concluded that federal courts must respect decisions from state courts regarding their own laws and statutes.