Because the law enforcement departments have their own set of requirements for admitting new personnel, the time frame needed to become a cop is hard to specify. Some police departments will accept candidates who have a high school diploma and have successfully graduated from state law enforcement training programs, which typically last from 3 to 6 months.
Other departments will impose applicants to earn a college degree in order to be considered for a training program. As a side note, recently the law enforcement agencies located in the large cities of the United States will only accept interns who graduated from an Associate’s Degree or higher learning program.
Moreover, in the Southern part of the U.S. (but not limited to that region), police departments favor candidates who know a foreign language. Therefore, training to become a cop in one of the large American metropolises takes minimum two years to earn a higher education degree and an additional year for graduating from a police academy.