This Supreme Court case involves The Mechanics' and Traders' Bank, Branch of the State Bank of Ohio (the plaintiffs) suing Henry DeBolt, late Treasurer of Hamilton County (the defendant). The plaintiff claims that they loaned money to the county in 1853 with a promise from the defendant to repay it. However, when repayment was due in 1854, no payment had been made. As such, the plaintiff is seeking compensation for their losses as well as interest on said amount. In response to this claim by the plaintiff, DeBolt argued that he could not be held liable for any debt incurred before his term began in January 1854 since he did not have authority over those funds at that time. Ultimately however, after much deliberation and consideration of both sides’ arguments by justices on the court bench; it was ruled that despite having taken office after incurring debts were made by previous officials; DeBolt still had an obligation to pay off these debts while serving as treasurer during his tenure or else face legal repercussions if found guilty.

In the case of The Mechanics' and Traders' Bank, Branch of the State Bank of Ohio v. Henry DeBolt, late Treasurer of Hamilton County, Chief Justice Taney delivered a dissenting opinion. He argued that under the Constitution's Contract Clause (Article I Section 10), states are prohibited from passing laws which impair existing contracts between private parties or individuals. In this case, he found that an act passed by the state legislature to reduce interest rates on certain bonds issued by Hamilton County was in violation of this clause as it impaired existing contracts between creditors and debtors who had already agreed upon terms for repayment at higher interest rates than those set forth in the new law. Therefore, Chief Justice Taney concluded that such legislation was unconstitutional and should be declared void ab initio - meaning invalid from its inception - so as to protect all parties involved in these agreements from any further harm caused by their enforcement.