A person who at a young age willfully urged to be a cop and has had the urge follow them to their prime, with either some success or no success altogether.

You may be able to determine a Cop Nerd by observing the work positions they hold such as: Hall Monitor, Security guard, Police Officer etc.
You may also be able to determine them through certain characteristics most resembling to a cop.

Most Cop Nerdโ€™s usually don't appear to have the means to be part of law enforcement or any part of special forces at all usually resulting in you not being able to take them seriously.
Theres also a chance that you may or may not see them impersonating and/or acting like a person of law enforcement or of the special forces on a day-to-day basis.
*Child/Man walks up to you wearing an orange fluorescent vest* Excuse me sir but youโ€™re not allowed to be within this perimeter during these hours...

You: Oh ok...sorry about that. (Fucking Cop Nerd)
Get the Cop Nerd mug.