Built by a working police officer
Your state's law in your pocket. Even with no signal.
Statutes, case law and step-by-step field guides for all 50 states + D.C., written for patrol and stored on your phone, so it works in a basement, a tunnel or a dead zone.
★ 4.9 from 124 ratings on the App Store7-day free trial for new subscribers
Everything you look up on a shift, in one app.
No law-review language. Each entry tells you what the law requires, what to charge and what to do first.
Your state's statutes
Criminal and motor vehicle law with the grade, the elements to prove and a note on what to do first.
Search the way you talk
Type "suspended" or "road rage" and get the right section. No statute numbers to memorize.
Field guides
Step-by-step walkthroughs for DV, DWI, search and seizure and use of force, with the legal basis at each step.
Case law for patrol
The cases that decide your stops, summarized in plain English, with the full citation.
No signal? It still works.
Everything lives on the phone. Law changes and corrections download in the background the next time you have service, without an App Store update.
- Works offline
- No login to browse
- Updates in the background
Why it exists
“I built this because I kept Googling case law on shift. The answers weren’t there, the ones that were didn’t read right, and nothing worked without signal. So I wrote the app I wished I had as a rookie, and I’ve kept writing it every shift since.”
From officers on the App Store
“I honestly thought this would be another fake police help app. ITS SHOCKINGLY GOOD. The case law that is in it, along with the simplicity of using the app to locate statutes for charges is amazing.”
“I've used on multiple occasions on patrol and hasn't steered me wrong in my decision making. The decision trees are an awesome resource.”
“Easy access to title 39, 2C and walkthrough guides helps make the job easier. Would recommend to all cops.”
4.9 average from 124 ratings. Reviews quoted as written.
Free for verified law enforcement
Temporary tag scanner
Scan a temporary tag and check it against the issuing state’s reference, for all 50 states. Verify once with your department email. Free with or without a subscription.
How the scanner worksPricing
7-day free trial for new subscribers. Lifetime is a one-time purchase.
Patrol Essentials
$9.99 / year
- Statutes and officer notes
- Case law, state and federal
- Directives, Miranda card, FST clues
- Works offline
Full Patrol Kit
$24.99 / year
- Everything in Essentials
- Field guides and quick cards
- Charge builder and MV stop toolkit
- SFST guide, Spanish phrases, DRE matrix
- Training Center
Lifetime Kit
$69.99 once
- Full Kit features for the life of the app
- Future updates included
- Limited spots per state
Federal officer? The Federal Kit is $49.99 a year or $139.99 lifetime. Departments can license StreetSense for a whole agency. Compare every plan.
From the blog
All articlesChoosing an app? Apps for police officers, compared.
Stop and identify, state by state
What you can demand, and what you can charge when someone refuses or lies.
Marijuana odor and car searches
Whether the smell alone still gets you into the car, by state.
- Can Police Search a Car for the Smell of Weed in Alaska? Undecided — and Clark Still Wants Exigency
- Can Police Search a Car for the Smell of Weed in Delaware? Odor Plus — and the Post-2023 Question Is Open
- Can Police Search a Car for the Smell of Weed in Rhode Island? Odor Counts for Suspicion; the Search Is Undecided
- Can Police Search a Car for the Smell of Weed in Maine? A 1979 Rule No Court Has Revisited
- Can Police Search a Car for the Smell of Weed in Vermont? One Factor, Never the Whole Case
- Can Police Search a Car for the Smell of Weed in Montana? It Gets You a DUI Check, Not the Car
Case law in plain English
The cases that decide your stops, one question at a time.
- Terry v. Ohio Still Runs the Show
- Miranda v. Arizona (1966)
- Graham v. Connor (1989)
- Rodriguez v. United States (2015)
- Whren v. United States (1996)
- Hiibel v. Nevada (2004)
- Riley v. California (2014)
- Arizona v. Gant (2009)
Questions officers ask
Does StreetSense work without signal?
Yes. Statutes, case law, field guides and quick cards are stored on your phone. Updates and corrections download in the background the next time you have service, without an App Store update.
Which states does it cover?
All 50 states + D.C. You pick the state you work in, and the app loads that state's law. Federal officers can get the Federal Kit instead.
Is there a free trial?
Subscriptions start with a 7-day free trial for new subscribers. The Lifetime Kit is a one-time purchase. You can cancel any time from your App Store or Google Play subscriptions.
How does the free temp tag scanner work?
Verified law enforcement get the 50-state temporary tag scanner free, with or without a subscription. You verify once in the app with your department email. Scans stay on your phone and the history clears when you close the app.
Who writes the content?
Nick S., a working police officer, built StreetSense and writes the officer notes. Entries are built from the statute text, case law and state directives, and checked against official sources before they ship.
How fast are corrections made?
Content corrections go out over the air, without waiting on an App Store review, and reach your phone the next time the app has signal. To report an error, email nick@mnsindustriesllc.com.
Is this legal advice?
No. StreetSense is an educational reference for law enforcement. It does not replace your agency's training, your department's policies or your prosecutor. Check the current statute when the facts are close.
Can my department buy it for a whole squad?
Yes. Agency licensing covers a department, FTO program or academy, with volume pricing and invoicing your admin can process. See agency licensing or email nick@mnsindustriesllc.com.
Find your state
Each state page shows what the app covers there: statutes, cases and field guides.