Competent
Being competent means having the necessary ability, knowledge, or skill to do something successfully. Of the three elements, I feel competency is the simplest, though not necessarily the easiest to obtain. Competency is born out of the classroom: a great deal of training and tons of study.
Since the only cure for inexperience is experience, you must create a group of related abilities, knowledge bases, and skills that will enable you to act with purpose to meet your goals and objectives. In other words, you must first learn the technical side of your job and how to apply that knowledge in a wide variety of situations.
Law enforcement competency involves a great deal of hands-on training and an equal amount of scenario-based role play. Your training must identify what you can and can’t use in the field. Your role play is where you try out your new knowledge for the first time. If you want to shorten your learning curve, your path to competency should also contain a lessons-learned component from other officers and agencies. This will enable you to lessen the number of mistakes you will inevitably make as you try to gain some experience.
You will soon learn that competency in and of itself is not enough. I have known many book-smart officers who handled training well in a controlled environment. But place those same officers in the field, in a real-world situation, and they needed constant supervision because they had no street smarts.
Capable
The next part of being successful falls under the heading of being capable. Sure, you know how to do it in theory, and you may have done well during your roleplay, but can you do it in real life? All the theory in the world won’t help you if you can’t apply it. Can you turn what you learned into action? Can you go to a call for service, mitigate the situation, and bring it to a successful resolution? When necessary, do you know who to call for help or hand it off to when your part is done? In short, can you do the job?