One of the nightmares that human resource managers have to deal with is that of workplace violence. The way things work is such that, whenever workplace violence takes place, it is perceived as a failing of the human resource department. It follows, then, that it is the said human resource department that is expected to come up with strategies for minimizing such violence.
The first strategy you can use to minimize incidences of workplace violence is that of coming up with rules that directly discourage such violence. The rules then need to be applied consistently: under a scheme where people who take part in workplace violence are actually sanctioned, so as to discourage others from taking part in similar incidences.
The second strategy you can use to minimize incidences of workplace violence is that of educating the staff members on why such violence is undesirable. This can be done by the human resource department. It can be part of the employee orientation or it can be part of ongoing employee development.
The third strategy you can use to minimize incidences of workplace violence is that of carrying out proper pre-employment vetting. The objective would be to avoid hiring the sorts of people who are predisposed to workplace violence.