Often, this can come down to client preference, but there are legitimate needs for both, depending on the context of the assignment. For example, in cases where a high-ranking executive has been threatened by a disgruntled employee, there is a legitimate need for around-the-clock protection.  But the appearance of uniformed, armed professionals may frighten neighbors and cause undue alarm.  In cases such as this, plainclothes is a great option – the Executive Protection team still provides the same level of protection, but their softened appearance better fits the venue.   Civilian clothing can also be used to mask the presence of Executive Protection in a large, crowded venue for and a lower profile. Alternatively, there are cases where you may want to send a message that Executive Protection is present.  Armed and uniformed Executive Protection agents certainly send that message.   This is often true for hostile terminations and threats of workplace violence.  For the safety of all employees, management may utilize uniformed Executive Protection.