Warrant: The Reasoning or Evidence
The warrant is the 'why' that connects your claim to reality — logic, causal reasoning, or evidence. You will be able to build a warrant that actually proves your claim rather than just restating it.
Logical Warrants vs. Evidence Warrants
A logical warrant uses reasoning alone, such as explaining an incentive structure or a chain of causation. An evidence warrant cites a study, statistic, or expert testimony to establish the claim is true in the real world. The strongest PF arguments often combine both: logic to explain the mechanism, evidence to prove it happens.
Avoiding the Restated Claim
A common novice mistake is writing a 'warrant' that just repeats the claim in different words, such as claim: 'This helps the economy,' warrant: 'because it is good for economic growth.' That is circular, not explanatory. A real warrant answers 'why would that be true?' with a mechanism.
Internal Link Chains
Advanced PF cases often need a chain of two or three linked warrants, called internal links, to get from a policy to its ultimate impact: policy causes behavior change, behavior change causes an economic shift, economic shift causes a measurable harm or benefit. Judges reward debaters who can walk through each link out loud rather than jumping straight from policy to impact.
A debater has the claim 'Body cameras reduce police use-of-force incidents.'
Circular warrant (bad): 'Because cameras make officers behave better.' Real warrant (good): 'When officers know their actions are being recorded, they anticipate accountability for excessive force, which changes their split-second decision-making — this is confirmed by a 2017 Cambridge University randomized-controlled trial finding a 93% drop in use-of-force complaints in departments using body cameras.'
1. A warrant that just restates the claim in different words is called:
2. Which combination makes the strongest PF warrant?
3. True or False?
"An evidence warrant and a logical warrant can be combined in the same argument."
Answer all 3 to check.
A warrant must explain 'why is this true,' never just restate 'this is true.'