What Are The Best Ways An Employer Can Do To Prevent Employees From Being Dishonest?

Put a CCTV in the office.....................

From my experience the question should really be, "How can Employers and Employees both maintain honesty?" What I mean by that is that employers need to lead-they need to establish a culture of integrity and honesty and clearly model those values. In addition, organizational values (You know, the ones that typically languish all dusty on the website) need to come alive. Few things excite and inspire employees more than a organizational committment to base every action and interaction on clearly identified values. That means having everyone be part of creating the values, identifying the behaviours associated with those values, and understanding the clear and consistent consequences of not living the values-as well as being acknowledged and affirmed for living them. When organizations commit to integrity; when they actually understand, follow and talk about the values they say they believe in, the issue of honesty and other organizational ills (gossiping, harassment, bullying, stress leaves, power struggles) tend to disappear (along with the relatively few people that need to be let go because for what ever reason they won't come on board the value "bus").

Hire honest people is the best way. Dishonest people are that way by nature. You can do all kinds of things to monitor people but it doesn't change the behavior of someone that is JUST that way.

Do a good interview and check references of people. Training is also key, and then lead by example

Humans are not perfect. Everyone has been dishonest at one time or another. So looking for "honest" people isn't the best answer. Some people are dishonest as a learned habit, some do it to protect themselves, and some are just compulsive. Instead of worrying about finding the honest people, I suggest learn how to respect your employees. People are less likely to steal from their place of business if they are being taken care of and respected by their employers. Instead of looking outside to fix your problems look within. Often when people are bothered by the behavior of others, they find much to their own shock that they exhibit that same bad behavior! This world would be much more peaceful if everyone started teaching by example instead of with control, power, and greed. Of course you will always have the very few that take advantage of your good nature, however remember that it is not for us to judge each other. Put yourself in the other person's shoes, how would you feel if nobody trusted you?

Get a lie detector. Outside of that all you can do is quickly get rid of bad apples, hire quality people, and promote and acknowledge the behavior you want.