What cross-ex is for
In policy and Lincoln-Douglas, one debater questions the other for three minutes after each constructive. Public Forum has crossfire, where both sides ask and answer. Congress has questioning periods after each speech, and World Schools and parliamentary formats have points of information during speeches.
Cross-ex has three jobs:
- Clarify: understand exactly what they argued (“What does your plan do for private schools?”).
- Commit: get them to agree to facts you’ll use (“Your evidence is from before the 2020 change, correct?”).
- Set up: plant the idea your next speech will develop. Cross-ex itself doesn’t win arguments; it’s what you do with the answers in your speech that counts.
Asking good questions
- Ask short, closed questions you can predict the answer to: “Is your study from one state?” works better than “Tell me about your study.”
- Go one fact at a time. Build a chain: “Your study is from one state?” “Yes.” “A state with no winter weather?” “Yes.” Then, in your speech: “Their only evidence comes from a state without snow days.”
- Don’t ask the one question too many. Once you have the admission, move on. Asking “So your study is useless?” invites a speech in reply.
- Don’t argue. Arguing with their answers wastes your time. Save it for your speech.
- Be polite and in control. You may politely cut off a long answer: “Thank you, that’s what I needed.”
- Ask for evidence. “Can I see your second card after cross?” is fair.
Answering well
- Answer the question asked, briefly and truthfully.
- Don’t fear “I don’t know.” It’s honest and better than guessing. You can add, “but our evidence says…”.
- Watch for hidden assumptions. If a question assumes something false, say so: “I don’t agree that the plan ignores rural students; here’s how it covers them.” (That’s a complex question.)
- Qualify when you need to. “Yes, for public schools” is better than a flat yes that’s too broad.
- Stay friendly. Judges remember tone. A calm answer to a sharp question wins sympathy.
A sample exchange
Neg Your case says rounding is fair because ups and downs balance out. Does that study look at the total after sales tax?
Aff Yes, the total with tax.
Neg Does it look separately at purchases of just one or two items?
Aff Not separately, no.
Neg Would you agree that shoppers who pay cash often buy just one or two things at a time?
Aff Some do. Many cash purchases are bigger, too.
Neg And after rounding, would stores need more nickels for change?
Aff Possibly some more.
Neg Thank you.
The negative never argued. It built a chain of admissions for its speech: the affirmative’s study doesn’t cover small purchases, and rounding may raise demand for the nickel, which costs more to make than the penny did. The affirmative answered truthfully and qualified fairly (“some do”, “possibly”), which leaves room to answer in its rebuttal.
Crossfire and points of information
In crossfire, both debaters ask and answer, so take turns. Ask one question, let them ask one. Hogging crossfire annoys judges.
A point of information is offered by standing (or raising a hand) during the other side’s speech, outside protected time. Keep it to one short sentence, ideally a question that exposes a problem. As the speaker, take one or two per speech; answer briefly, then continue your speech.
Practice
- Write five closed questions about one argument on a topic page, in an order that builds to an admission.
- Have a partner ask you hard questions for two minutes; practice saying “I don’t know, but…” and pointing out a hidden assumption.
- Use the cross-examination questions on any topic page to run a three-minute cross-ex with a timer.
Sources
- Lincoln-Douglas Debate (time limits), National Speech & Debate Association. Accessed 2026-10-25.
- Public Forum Debate (time limits), National Speech & Debate Association. Accessed 2026-10-25.
Updated 2026-10-25.