Or security personnel could be warned when a recently fired employee's vehicle arrives on company premises. (canadianbusiness.com)
As long as the products are legal in the country, employers can't prohibit an employee, especially if they are not in company premise. (resumeprofessionalwriters.com)
In addition, employees may not be under the influence of any controlled substance, such as drugs or alcohol, while at work, on company premises or engaged in company business. (localdriving.com)