In Puthukkeril v. Allen, a California Court of Appeal upheld the right of an employer to protect its employees from "credible" threats of workplace violence and affirmed a two year injunction prohibiting a former employee from harassing or threatening current employees. The former employee made statements that people were going to die from using the company's product, called the company's hotline after his resignation warning of death, repeatedly called a co-worker and asked her out despite her declining his requests, and made statements that "God's will shall be done" and that "this is bigger than me." Believing the behavior to be threatening, the employer installed security systems in the homes of the individuals contacted by the former employee and notified the local police.

In addition to individual employees who may obtain an injunction for threatened violence, employers may also similarly protect their employees. Employers need to show that there is a "credible threat of violence", i.e., that the individual has made statements or behaved in such a manner that a reasonable person would fear for his or his family's safety.