Mapp v. Ohio made illegally seized evidence unusable in state criminal trials, forcing police to follow the Fourth Amendment instead of treating it like a suggestion.

In most civil workplace cases, you do not need airtight proof - you need enough credible evidence to show your version is more likely true than not.

Habeas corpus lets a prisoner challenge unlawful custody, but modern federal habeas mostly turns on a punishing rule: it is not enough to show the state court was wrong.

Joint and several liability means an injured person may collect the full judgment from one defendant, but the real fight is how that rule collides with comparative fault, settlements, bankruptcy, and state law changes.

The Eighth Amendment is not a list of banned punishments so much as a moving constitutional standard, and one Supreme Court case explains why.

The Commerce Clause is why Congress can reach far beyond shipping and trucking, but it still has real limits that matter if you are thinking about suing under federal law.

The Supreme Court erased the nationwide abortion right in 2022, but whether state abortion bans actually get enforced often depends on who is suing, who is prosecuting, and which court steps in.

Terry v. Ohio created the rule that lets police briefly stop and pat down someone without a warrant, and the real fight now is over how much suspicion counts as enough.

Heller recognized an individual Second Amendment right, but people get burned when they assume that means every gun restriction in a lease, eviction case, protection order, or criminal case is automatically illegal.

Vicarious liability means you can end up paying for someone else's misconduct, and the old "they weren't really my employee" escape hatch is a lot weaker than people think.

RFRA was Congress's response to a Supreme Court decision that weakened free-exercise protections, and it gives people a powerful way to argue that federal law burdens their religion too much.

States use two very different systems to divide property in divorce, and the difference can change who keeps the house, retirement money, and debt.

At-will employment is the default rule in almost every state, but it only really applies if you are legally an employee in the first place.

The ADA has a definition that once let employers and businesses argue lots of people were not "really" disabled, but Congress and the courts largely shut that down.

Loving v. Virginia did more than end interracial marriage bans - it treated marriage as a basic right the government cannot shut off for bad reasons.