Examples of injustice can be found throughout To Kill a Mockingbird.
- In Chapter 1, we learn about the abuse that Boo Radley has suffered, beginning with his father's decision to confine Boo within the Radley house and including the terrible gossip that has consumed the townspeople.
- In Chapter 2, Scout is treated unfairly by her first-grade teacher, Miss Caroline, who thinks Scout's advanced reading ability is a result of Atticus's poor teaching.
- In Chapter 3, Miss Caroline herself is the victim of the ignorant young Burris Ewell, and she suffers the indignity of being called a "snot-nosed slut of a schoolteacher" in front of her class.
- In Chapter 7, Jem is lied to by Nathan Radley after Boo's brother cements the knothole to prevent further contact with the children.
- In Chapter 8, Jem and Scout are blamed by Mr. Avery for the unseasonably cold weather in Maycomb.
- In Chapter 9, Scout is punished unfairly by her Uncle Jack when she "split my knuckle to the bone on his (Cousin Francis's) front teeth" after Francis called Scout and Atticus a "nigger-lover."
- In Chapter 14, Dill is forced to run away from home because of the lack of attention he receives from his parents.
- In Chapter 16, the Negro spectators in the courtroom are forced to wait until the last white man has entered before they can be seated--separately in the balcony.
- In Chapter 17, Tom Robinson is falsely accused by Bob Ewell of beating Mayella Ewell--a crime for which Bob is most likely guilty.
- In Chapter 19, Tom is forced to suffer the indignity of being repeatedly called "boy" by the prosecutor.
- In Chapter 21, Tom is unjustly found guilty of rape by a jury which had made up its mind before the trial had begun.
- In Chapter 23, Scout is denied the chance to allow Walter Cunningham to visit the Finch house by Aunt Alexandra "Because--he--is--trash..."
- In Chapter 24, Scout witnesses the hypocritical actions of the ladies of the Missionary Circle.