The Lemonade Crime by Jacqueline Davies

Following the laws of our legal system, Evan and Jessie’s fourth grade class concocts a courtroom on the playground, putting Scott Spencer, alleged thief, on trial. They create a legitimate courtroom—with a judge, witnesses, a jury of their peers—and surprising consequences.

Chapter 11 – Perjury

perjury (pûr′jə-rē), n. Purposely telling a lie in a court of law after taking an oath to tell the truth.”