ELI5: What is habeas corpus?

Habeas corpus is like a "show me the prisoner" order, where a judge asks the government to prove why someone is locked up.

Imagine you have a toy, and your friend takes it and hides it in their room. You can ask their mom, "Where's my toy? Show me!". Habeas corpus is kind of like that, but for people in jail.

If someone is in jail, habeas corpus is a way for them (or someone on their behalf) to ask a judge: "Why am I locked up? Show me the evidence!" It's a check on the government's power to make sure they're not locking people up unfairly.

Here's how it generally works:

• Someone in jail (or their lawyer) files a habeas corpus petition with a court.
• The government has to respond and explain why they are keeping that person in jail. They have to show the legal reason, like a conviction or a warrant.
• The judge looks at the reason the government gives and decides if it's good enough.
• If the judge thinks the person is being held illegally (maybe they didn't get a fair trial, or the law they broke was unfair), the judge can order the person to be released.