Judicial corruption happens when people who work in courtrooms or the justice system do bad things like stealing money or favoring one person over another. It's like when a grown-up takes a candy from a baby or helps their friend win a game unfairly.
Judges, lawyers, and other people who work in the court system are supposed to be fair and follow the rules. They make important decisions that affect people's lives, like deciding who to punish for breaking the law or who gets to keep their house in a divorce. But sometimes, these people break the rules themselves and it's not fair.
It's important to have a justice system where everyone is treated equally and fairly. When bad things happen and people don't follow the rules, it can cause a lot of problems and it's not fair to everyone involved. That's why we need to make sure that the people who work in the justice system are honest and trustworthy.