Law enforcement refers to all the activities that representatives of the government engage in while enforcing the law, which often entails apprehending, deterring, punishing, and rehabilitating people that break the law. In essence, police officers are the first to respond to a crime as they make the initial contact. In most cases, people call to report crimes, or in some instances, the police witness the crime themselves. Upon making contact, police officers must identify the perpetrators of the crime and determine its cause. The responsibility of the office in enforcing the law is collecting evidence and preserving the crime scene. Additionally, they are required to conduct interviews and round up the witnesses. Suspects of the crime are then arrested and taken into custody for questioning. They are informed about their constitutional rights and questioned, and at this point, they are booked for further processing. The booking process entails a series of activities, including taking mug shots, correction of fingerprints, and DNA collection from the suspect. In a nutshell, law enforcement begins with initial contact, investigation, arresting, and finally booking.

For the case to proceed for hearing in the courts, the prosecutor needs to agree that there is enough evidence to charge the suspect with the crime. If the prosecutor decides to charge the suspect, then a preliminary hearing is held to determine if there is a reason to think that a law was broken. The defendant is brought before the courts and formal charges are read to them in the presence of their counsel; and at this point, they are required to enter a plea of guilty or not guilty, and a date for the trial is set. At this point, bail may be denied or considered and at this point, plea bargaining begins where prosecutors seek a guilty plea in exchange for a shorter sentence. If the case proceeds to trial, defense, and prosecution both present their cases before a jury decides the prosecution before a jury.

With regard to collection, an offender may be required to pay a fine in the form of money as part of their punishment. Additionally, one may be required to serve a sentence in prison. Offenders are required to agree to the set of conditions under which they will report to a probation officer to remain free. Some offenders may be required to wear an electronic device that tracks their movement. An offender sentenced to over one year must serve their term in jail, and there are reintegration programs that help introduce offenders back into society gradually. In this case, some of their freedoms are restricted, and they are required to carry out drug tests and job counseling.