A scab is a worker who crosses a picket line in violation of a planned work stoppage or strike. The term "scab" is a derogatory term for someone who leaves or declines to join a labor union, freeing them to work during a strike. The use of strikebreakers is a worldwide phenomenon; many countries have passed laws outlawing their use to give more power to unionized workers. Strikebreakers are usually individuals who were not employed by the company before the trade union dispute but hired after or during the strike to keep the organization running. Strikebreakers may also refer to workers (union members or not) who cross picket lines to work. The term "scab" has been used since the late 1700s to refer to workmen who wouldnt join a strike, a union, or take part in organized labor.