David Chen

David Chen

Criminal Procedure & Public Interest Researcher

David Chen conducts in-depth research on criminal justice procedure, constitutional Fourth and Fifth Amendment protections, and state-by-state judicial systems. He works to ensure legal explainers accurately cite statutory codes, judicial rules, and court precedents.

Legal research specialist; content is verified against official government and court records.

Legal Guides by David Chen (22)

Criminal Law

What Is Probable Cause?

Probable cause is the Fourth Amendment standard that requires police to have trustworthy facts showing a fair probability of a crime before arresting someone or getting a search warrant.

4 min readRead Guide →
Family Law

What Is a Prenuptial Agreement?

A prenuptial agreement is a written contract signed before marriage that sets out how property, debts, and sometimes spousal support will be handled if the marriage ends.

3 min readRead Guide →
Personal Injury

What Is Negligence in U.S. Law?

Negligence is the failure to use the care a reasonably careful person would use in the same situation. It is the most common basis for personal injury lawsuits.

3 min readRead Guide →
Immigration Law

What Is a Green Card?

A green card is proof of lawful permanent resident status, which lets a non-citizen live and work in the United States permanently and eventually apply for citizenship.

4 min readRead Guide →
Immigration Law

What Is an Employment-Based Visa?

Employment-based visas let foreign workers come to the U.S. to work, either temporarily (such as H-1B or L-1) or permanently through an employment-based green card.

3 min readRead Guide →