Though DNA has revolutionized modern crime fighting, the clues it may hold aren't revealed quickly. Samples of saliva, or skin, or semen are sent to a crime lab by car (or mail), and then chemists get to work. Detectives are accustomed to waiting days or weeks, or more, for the results. Some labs are so backed up, they only take the most serious crimes. Some samples never get tested.

Apparently, sitting on the floor in Brooklyn is against the law and, if you've got a baby in your arms, watch out! Oh, and she's black.

Seven years ago, the First Circuit Court of Appeals released its Glik decision. This decision found that recording public officials was protected by the First Amendment, overriding Massachusetts state law. The state wiretap law says recordings must...

A police department in Washington state made a lot of people laugh this week with a back and forth Facebook exchange with a criminal who had a warrant out for his arrest for allegedly violating his probation. Anthony Akers, 38, had a warrant issued after he failed to comply with the terms of his probation, Richland Police Sgt. Drew Florence told BuzzFeed News. Florence didn't immediately have the information on Akers' original crime.

A shocking story of police and lethal force. Just not the one you might expect. By Joe Sexton.

We spoke to Bernard Harcourt about his latest book, “The Counterrevolution,” and what makes the Trump presidency unique. By Jeremy Scahill.

These dramatic images today reveal Scotland Yard’s new hardline war on London’s violent moped gangs. Extraordinary dashcam footage shows police pursuit drivers ramming fleeing moped thugs, sending them sprawling in the road. Police said the new strategy of ending pursuits with what the Met calls “tactical contact” was now in  common use across London.

When a pair of California Highway Patrol officers pulled alongside a car cruising down Highway 101 in Redwood City before dawn Friday, they reported a shocking sight: a man fast asleep behind the wheel. The car was a Tesla, the man was a Los Altos planning commissioner, and the ensuing freeway stop turned into a complex, seven-minute operation in which the officers had to outsmart the vehicle’s autopilot system because the driver was unresponsive, according to the CHP. The arrest of 45-year-old Alexander Samek on suspicion of drunken driving reignited questions about the uses, and potential abuses, of self-driving technology.

We all have an innate ability to pick a face out of a crowd. But some can memorise thousands of people – often seen only fleetingly on CCTV. Alex Moshakis meets the ‘super recognisers’

Border Patrol agents are extending their reach deep into the country’s interior. By Melissa del Bosque.

A police officer has shot and killed an armed security guard at a suburban Chicago bar, and now the guard's mother is suing police.

Peter Brown was born in Philly, but he visited Jamaica for one day, years ago on a cruise. That gave U.S. Immigration and Customs Enforcement and the Sheriff of Monroe County, Florida a good enough reason to detain Brown and attempt to deport him to Jamaica, even though he has never lived there and doesn't know a single person there.

Searching a smartphone is different from searching luggage. Our smartphones carry our innermost thoughts, intimate pictures, sensitive workplace documents and private messages.

Police officer also advertised a system to track the location of buyers' gang rivals or spouses based on the telephone numbers.

Apple makes a major stride in iPhone security, locking out the GrayKey device that promised governments a way into modern iOS devices.

One of the former attorney general’s final acts was to make it nearly impossible for federal civil rights lawyers to rein in police abuse. By Ryan J. Reilly.

Gloves off!

Internal NYPD files show that hundreds of officers who committed the most serious offenses — from lying to grand juries to physically attacking innocent people — got to keep their jobs, their pensions, and their tremendous power over New Yorkers' lives. A BuzzFeed News investigation.

This palm-sized box can break your iPhone's password, giving police full access to a device's file system -- messages, photos, call logs, browsing history, keychain and user passwords, and more.

ICE uses Facebook's backend to hunt immigrants, with help from Palantir

Louisiana's attorney general has ruled out criminal charges against two white Baton Rouge police officers in the fatal shooting of a black man outside a convenience store.

Cruise says its car never came within 10 feet of a pedestrian.

Even in a world of omnipresent surveillance technology, old-fashioned pencil artists help police catch bad guys.

Inside one of America's most corrupt police squads.

A federal court jury awarded $10 million in damages Friday to a San Francisco man who spent six years in prison before his murder conviction was thrown out.

Should law enforcement be able to test them?

The subversion arises from a 1968 Supreme Court decision.

Robinson said he thought about his loved ones and how the afternoon had taken such a turn as he was taken to jail. Nelson wondered if he'd make it home alive.

Cops refused to be intimidated by an official from the NY/NJ Port Authority.

People who filmed high-profile videos of the police killings of Freddie Gray, Eric Garner, Walter Scott, Philando Castile, Alton Sterling, and others say they have faced retaliation and harassment.

The digital privacy world was rocked late Thursday evening when The New York Times reported on Securus, a prison telecom company that has a service enabling law enforcement officers to locate most American cell phones within seconds. The company does this via a basic Web interface leveraging a location API—creating a way to effectively access a massive real-time database of cell-site records

You don't know the whole story of how close we came to one of the deadliest political shootings in US history last year.

White woman calls cops on black family who barbecued in Oakland Park's barbecue area

Police stops in Los Angeles are highly concentrated within just a small portion of the population, and the Los Angeles Police Department has been using targeted predictive policing technology that may exacerbate that focused scrutiny. That’s according to a report put out this week by the research and activist organization Stop LAPD Spying Coalition, which draws from the testimony of city residents and newly released police documents to paint a picture of a “racist feedback loop” in which a “disproportionate amount of police resources are allocated to historically hyper-policed communities.”

Federal prosecutors have charged three men with carrying out a deadly hoax known as “swatting,” in which perpetrators call or message a target’s local 911 operators claiming a fake hostage situation or a bomb threat in progress at the target’s address — with the expectation that local police may respond to the scene with deadly force. While only one of the three men is accused of making the phony call to police that got an innocent man shot and killed, investigators say the other two men’s efforts to taunt and deceive one another ultimately helped point the gun.