N.J. Stat. § 30:4-99: Limitations on employment; marching prisoners in irons; armed guards; free labor

The employment of the inmates of any institution within the jurisdiction of the state board shall be subject to the following specific limitations:

a. Marching or transportation of convicts in irons through the public streets or to or from their places of assigned labor shall not be permitted except in case of absolute emergency;

b. Convict labor under armed guard shall not be used on public improvements in conjunction with free labor;

c. Convict labor shall not be used to take the place of free labor locked out or on strike.