Reviewing a Search Warrant with a No-Knock Request
A detective brings you a search-warrant affidavit at 16:30 Thursday. It seeks to search a duplex for stolen power tools. Basis: a confidential informant told the detective that 'a guy named Rick' sold him a nail gun at the duplex two days ago. The CI has provided information twice before, resulting in one arrest and one recovery, but the affidavit does not document the CI's basis of knowledge or track record. The affidavit adds that a records check shows the duplex is rented to Rick Alvarez, who has a 2018 burglary conviction. The detective wants a no-knock entry because Alvarez 'may be armed'; no specific fact about a weapon is given. Execution is planned for 06:00 tomorrow. The prosecutor is unavailable until morning.
1. Evaluate whether the affidavit establishes probable cause and particularity. Identify the defects.
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Probable cause is a fair probability that evidence of a crime will be found in a particular place. The affidavit has three problems.
Reliability and basis of knowledge. The CI's tip is hearsay. Under the totality-of-the-circumstances test, the magistrate can consider the CI's track record, but the affidavit does not document it. 'Two prior tips, one arrest and one recovery' is helpful if true, but the detective must state it and explain the CI's basis of knowledge - how the CI knew the nail gun was stolen and where it came from. Without that, the tip is close to a bare conclusion.
Nexus. The only link between the duplex and the stolen tools is the CI's statement about one sale two days ago. That is recent and specific, but it needs corroboration. The records check shows Alvarez rents the duplex and has a 2018 burglary conviction. That supports identity and perhaps criminal history, but it does not by itself show that stolen tools are there now.
No-knock. 'May be armed' is boilerplate. Richards v. Wisconsin requires reasonable suspicion that knocking would be dangerous or allow destruction of evidence, based on specific facts. A burglary conviction does not supply that. The affidavit also fails to specify the items to be seized with particularity or to justify a nighttime execution if one is planned.
2. What do you do before 06:00, given the prosecutor is unavailable?
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I would not approve the warrant as written, and I would not authorize a no-knock entry. Before 06:00 I would take these steps:
- Send it back for specificity. The detective must state the CI's basis of knowledge, the CI's track record with dates and outcomes, and any corroboration - a controlled buy, serial-number check, or independent observation.
- Attempt to reach the prosecutor or on-call judge. If the prosecutor is unavailable, I would contact the on-call assistant prosecutor or the judge's warrant clerk. A warrant can be presented by phone or video in many jurisdictions if sworn.
- Delay execution if the record is insufficient. There is no exigency that requires execution at 06:00. Waiting a day to build a better affidavit is cheaper than a suppression hearing.
- Scrub the no-knock request. Standard knock-and-announce is the default. If the detective has specific facts - a history of shooting at police, a documented threat - he can present them, but 'may be armed' is not enough.
- Document my review. I would write a memorandum to the file explaining what I approved and why.
If the detective believes there is an immediate threat to life, that is a different analysis and should be handled as an exigency, not as a warrant workaround.
3. If the detective pushes back, how do you handle it as a leader?
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I would treat the pushback as a leadership moment, not a contest. The detective may feel I am second-guessing his work. I would say: 'The issue is not whether you believe the CI. The issue is whether the affidavit gives a judge enough to sign and enough to survive suppression. Let me help you get there.'
I would offer concrete help: release a patrol officer to do a controlled buy, call the prosecutor together, or review a revised draft within two hours. I would explain the consequences of a bad warrant - suppression, civil liability, and damage to the case - and the consequences of a no-knock gone wrong. I would also recognize good work where it exists.
If the detective still wanted to proceed on the deficient affidavit, I would escalate in writing to the watch commander or chief, because the legal risk belongs to the department. I would not demean him in front of peers. The goal is a lawful warrant and a detective who trusts that the review process makes his cases stronger.