To Catch a Bike Thief - NBC Southern California

The NBC4 I-Team's hidden camera captures bike thieves in the act

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Heroin Ring Operated Like Pizza Delivery Service

Heroin Ring Operated Like Pizza Delivery Service

In raids across multiple counties, the DEA on Wednesday took down a "heroin distribution machine" they say earned $250,000 a week packaging and selling the drug. Read More

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Joel Grover and Randy Mac

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Friday, Feb 5, 2016
NBC4 I-Team Tips

NBC4 I-Team Tips

Do you have a tip for the NBC4 I-Team? We want to hear from you. Read More

Tuesday, Nov 21, 2017
Los Angeles Vows to Rid Libraries of Sex and Drugs

Los Angeles Vows to Rid Libraries of Sex and Drugs

Both the Los Angeles City Council and the LA County board of supervisors took action Tuesday to make public libraries safer, in direct response to an NBC4 I-Team undercover investigation last week. Read More

Thursday, Nov 16, 2017
LAPD Cracks Down on Crime at Los Angeles City Libraries

LAPD Cracks Down on Crime at Los Angeles City Libraries

The Los Angeles Police Chief is adding more officers to patrol Los Angeles public libraries, in response to an NBC4 undercover investigation that exposed illegal activity at local libraries. Those crimes often occurred while... Read More

Wednesday, Nov 15, 2017
Porn at the Public Library

Porn at the Public Library

The L.A. Public Library offers free internet at its 73 branches, but an NBC4 I-Team investigation finds many patrons use it to watch explicit porn, often with children nearby. Read More

Tuesday, Dec 12, 2017
Danger in the Line of Duty

Danger in the Line of Duty

After a police officer was stuck by a suspected DUI driver, the NBC4 I-Team examined how often police officers are actually in harm's way. Lolita Lopez reports for the NBC4 news at 6 p.m. on Tuesday, Dec. 12, 2017.

Monday, Dec 11, 2017
California Insurance Premiums May Rise Due to Wildfires

California Insurance Premiums May Rise Due to Wildfires

The recent rash of brush fires may burn a hole in our wallets with insurance premiums likely to rise in California, according to the State Department of Insurance. Read More

Friday, Dec 8, 2017
Victims Warned of Price Gouging After Fires

Victims Warned of Price Gouging After Fires

The NBC4 I-Team is informing people of price gouging and how it's illegal after an emergency has been declared. Randy Mac reports for the NBC4 News on Friday, Dec. 8, 2017.

Friday, Dec 8, 2017
Water Shortages Faces in Ventura County During Thomas Fire

Water Shortages Faces in Ventura County During Thomas Fire

The NBC4 I-Team is investigating reports of water shortages and the challenges firefighters had to face fighting the Thomas Fire. Lolita Lopez reports for the NBC4 News on Friday Dec. 8, 2017.

Friday, Dec 8, 2017
Navigation Apps Lead Drivers Astray During Emergencies

Navigation Apps Lead Drivers Astray During Emergencies

Navigation apps have been leading drivers astray, sometimes directing them into safety hazards like evacuated fire zones. Cities do not have direct relationships with app companies, which explains the troublesome routes. Lolita Lopez reports for the NBC4 News on Friday, Dec. 8, 2017.

Sex and Drugs at LA Libraries


An NBC4 undercover investigation exposes illegal activity at LA libraries.

Fake Reviews


If you rely on online reviews to pick restaurants, businesses and services, beware: the reviewers you're depending on may be fake.

LA's Nuclear Secret


Years of mishandling dangerous radioactive materials and chemicals has also left a toxic legacy for generations of people living near the Santa Susana Field Laboratory.

Top Investigations

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Car Chases
Car Chases
SoCal pursuits coverage. Read more
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