all employees will remain under employer's sole authority for the whole duration of the training.

问题描述:

all employees will remain under employer's sole authority for the whole duration of the training.
这句话中的under employer's sole authority 如何翻译呢?大侠们指教啊

employer = 老板/雇佣者
sole = 个人/独有
under ..authority = 受..指挥/权利
只有老板有权利...(去怎样怎样)