1. courtroom : the place where a crime is judged.
2. trial : the process of being judged in a court.
3. jury : a group of people who judge a court case.
4. jury box : the place where the members of the jury sit.
5. court reporter : sb. whose job is to write notes of what is said at a trial.
6. judge : sb. whose job is to make decisions in a court of law.
7. wig : artificial hair that you wear on your head.
8. (judge’s) bench : the place where the judge sits.
9. witness : sb. who sees a crime or accident happen.
10. witness : stand the place where the witness sits.
11. evidence : sth. that helps to prove whether sb. has committed a crime.
12. defence lawyer : sb. who represents a person accused of a crime.
13. defendant, accused : sb. who has been accused of a crime and is on trial.
14. usher : sb. whose job is to allow people to enter or leave a court of law.
15. public, gallery : the people who watch a trial.
16. press : journalists who write about a trial.
17. claimant (US plaintiff)
: sb. who makes a formal complaint against sb. in court.
18. prosecutor : a lawyer whose job is to prove that sb. has committed a crime.
19. security officer
(US bailiff)
: an official who keeps order in court.
20. clerk of the court : an official in charge of the records of a court.