Labor law is the body of law which address the legal relationship between trade unions, employees, and employers -- including collective bargaining, union organization activities, and the negotiation of strikes and lockouts. Labor law arose due to the demands for workers for better conditions, the right to organize, and the simultaneous demands of employers to keep labor costs low. Labor law attorneys may represent their clients in matters before the National Labor Relations Board (NLRB), which hears disputes between employers and unionized employees.
Derby is an unincorporated community along the Ohio River in far southern Union Township, Perry County, Indiana, United States. It lies at the intersection of State Roads 66 and 70 above the city of Tell City, the county seat of Perry County. Its elevation is 449 feet (137 m), and it is located at 38°1′49″N 86°31′38″W / 38.03028°N 86.52722°W / 38.03028; -86.52722 (38.0303400, -86.5272018). Although Derby is unincorporated, it has a post office, with the ZIP code of 47525.