Banking and Finance Law:  State and federal law regulate bank and finance law.  Most banks operate on a local and national basis and are chartered to do so, like Wells Fargo, CitiBank, Bank One, and others.  Banks are monitored and also insured by the FDIC (Federal Deposit Insurance Corporation).  If securities fraud occurs or something involving stocks and bonds, banking and finance law is implemented.  There have been major lawsuits against Wall Street companies, which have paid out hundreds of millions of dollars.  Stock, common stock and securities are also governed under these laws.  Checking accounts are governed by state law and some federal laws.