What are law enforcement bodies?
Laws are only words on paper unless someone makes sure they are followed. The bodies that do this are called law enforcement bodies or the "justice system". There are three main ones: the police, the prosecution and the courts. Each one has a different job, and each one checks the others.
The police
The police keep public order and fight crime. When a crime happens, they:
- take the report from people who were harmed,
- collect evidence (proof) such as photos, objects and witness words,
- find the suspect and, when the law allows, detain them.
The police must follow the law too. A suspect has rights: to know the reason, to talk to a lawyer, and to be treated with respect. The police cannot decide guilt.
The prosecution
The prosecution (the prosecutor's office) checks that the investigation followed the law and that the proof is enough. If it is, the prosecutor brings the charge and speaks for the state in court. In many countries the prosecutor also watches that laws are followed by officials. A prosecutor who sees weak proof should not take the case forward.
The courts
The court is where guilt is decided. The judge must be independent: not under orders from the police, the prosecutor or the government. The judge:
- hears the prosecutor and the defence (the accused and their lawyer),
- looks at the evidence,
- gives a verdict: guilty or not guilty, and the punishment if guilty.
Courts also decide civil cases, such as damages. There are several levels. An unhappy side can appeal to a higher court. A person is innocent until a court says otherwise.
Why three separate bodies?
If one body could investigate, accuse and judge, it could punish anyone. By splitting the job, each body checks the others: the prosecutor checks the police, the judge checks both. This is how fairness is protected.
Key formulas and definitions
- Police = investigate, collect proof, catch suspects
- Prosecution = check the case, bring the charge, speak for the state
- Court = hear both sides, decide guilt, give the verdict
- Order of a criminal case: crime, police, prosecutor, court, verdict, (appeal)
Worked examples
1. A phone is stolen. Who looks at camera footage and finds the thief?
The police. Collecting evidence and finding the suspect is their job.
2. Who decides if the thief is guilty?
The court. The judge hears both sides and gives the verdict. Neither the police nor the prosecutor decides guilt.
3. The thief thinks the verdict is unfair. What can happen next?
The thief can appeal to a higher court, which checks the first decision.
Common mistakes
- Thinking the police decide guilt. Only a court does.
- Thinking the prosecutor is the judge. The prosecutor speaks for the state; the judge decides.
- Thinking the accused has no rights. They have the right to a lawyer, a hearing and fair treatment.
- Thinking one body should do everything for speed. Splitting the jobs protects fairness.