Entries Tagged "law enforcement"

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Recognizing "Hinky" vs. Citizen Informants

On the subject of people noticing and reporting suspicious actions, I have been espousing two views that some find contradictory. One, we are all safer if police, guards, security screeners, and the like ignore traditional profiling and instead pay attention to people acting hinky: not right. And two, if we encourage people to contact the authorities every time they see something suspicious, we’re going to waste our time chasing false alarms: foreigners whose customs are different, people who are disliked by someone, and so on.

The key difference is expertise. People trained to be alert for something hinky will do much better than any profiler, but people who have no idea what to look for will do no better than random.

Here’s a story that illustrates this: Last week, a student at the Rochester Institute of Technology was arrested with two illegal assault weapons and 320 rounds of ammunition in his dorm room and car:

The discovery of the weapons was made only by chance. A conference center worker who served in the military was walking past Hackenburg’s dorm room. The door was shut, but the worker heard the all-too-familiar racking sound of a weapon, said the center’s director Bill Gunther.

Notice how expertise made the difference. The “conference center worker” had the right knowledge to recognize the sound and to understand that it was out of place in the environment he heard it. He wasn’t primed to be on the lookout for suspicious people and things; his trained awareness kicked in automatically. He recognized hinky, and he acted on that recognition. A random person simply can’t do that; he won’t recognize hinky when he sees it. He’ll report imams for praying, a neighbor he’s pissed at, or people at random. He’ll see an English professor recycling paper, and report a Middle-Eastern-looking man leaving a box on sidewalk.

We all have some experience with this. Each of us has some expertise in some topic, and will occasionally recognize that something is wrong even though we can’t fully explain what or why. An architect might feel that way about a particular structure; an artist might feel that way about a particular painting. I might look at a cryptographic system and intuitively know something is wrong with it, well before I figure out exactly what. Those are all examples of a subliminal recognition that something is hinky—in our particular domain of expertise.

Good security people have the knowledge, skill, and experience to do that in security situations. It’s the difference between a good security person and an amateur.

This is why behavioral assessment profiling is a good idea, while the Terrorist Information and Prevention System (TIPS) isn’t. This is why training truckers to look out for suspicious things on the highways is a good idea, while a vague list of things to watch out for isn’t. It’s why this Israeli driver recognized a passenger as a suicide bomber, while an American driver probably wouldn’t.

This kind of thing isn’t easy to train. (Much has been written about it, though; Malcolm Gladwell’s Blink discusses this in detail.) You can’t learn it from watching a seven-minute video. But the more we focus on this—the more we stop wasting our airport security resources on screeners who confiscate rocks and snow globes, and instead focus them on well-trained screeners walking through the airport looking for hinky—the more secure we will be.

EDITED TO ADD (4/26): Jim Harper makes an important clarification.

Posted on April 26, 2007 at 5:43 AMView Comments

A Rant from a Cop

People use policemen as props in their personal disputes:

Noon, its 59 degrees and I get a call from a guy whose neighbor’s dog has been left in a car. I get there, the windows are cracked, and the dog has only been in there 20 minutes. It’s 59 Degrees! It’s not summer and if it were the dead of winter I’d say the car is a $20,000 dog house. But it turns out this guy has a running dispute with his neighbor so guess who he calls to irritate the guy a little more? Me. When I go to leave, the asshole that called this in yells, “hey, aren’t you gonna do anything?” I explain why I am not and he says “great, I’m writing a letter to the paper” Holy shit. Now I’m the bad guy because I didn’t embarrass your target enough for you? Grow the hell up.

When the police implement programs to let ordinary citizens report suspected terrorists, this is the kind of thing that will result.

Posted on April 25, 2007 at 1:08 PMView Comments

Cameras "Predict" Crimes

New developments from surveillance-camera-happy England:

The £7,000 device, nicknamed “the Bug”, consists of a ring of eight cameras scanning in all directions. It uses software to detect whether anybody is walking or loitering in a way that marks them out from the crowd. A ninth camera then zooms in to follow them if it thinks they are behaving suspiciously.

[…]

“The camera picks up on unusual movement, zooms in on someone and gathers evidence from a face and clothing, acting as a 24-hour operator without someone having to be there,” said Jason Butler, head of CCTV at Luton borough council. “We have kids with Asbos telling us they hate the thing because it follows them wherever they go.”

This is interesting. It moves us further along the continuum into thoughtcrimes, but near as I can tell, the system just collects evidence on people it thinks suspicious, just in case. Assuming the data is erased immediately after, it’s much less invasive than actually accosting someone for thoughtcrime; the costs for false alarms is minimal.

I doubt it works nearly as well as the article claims, but that’s likely to change in 5 to 10 years. For example, there’s a lot of research being done in the area of microfacial expressions to detect lying and other thoughts. This is the sort of technological advance that we need to be talking about in terms of security, privacy, and liberty.

Posted on April 19, 2007 at 6:20 AMView Comments

Arresting Children

A disturbing trend.

These are not the sorts of matters the police should be getting involved in. The police aren’t trained to handle children this age, and children this age don’t benefit by being fingerprinted and thrown in jail.

EDITED TO ADD (4/18): Another example:

Unfortunately, the school forgot that the clocks had switched to Daylight Saving Time that morning. The time stamps left on the hotline were adjusted by an hour after Day Light Savings causing Webb’s call to logged as the same time the bomb threat was placed. Webb, who’s never even had a detention in his life, had actually made his call an hour before the bomb threat was placed.

Despite the fact that the recording of the call featured a voice that sounded nothing like Webb’s, the police arrested Webb and he spent 12 days in a juvenile detention facility before the school eventually realised their mistake.

Posted on April 18, 2007 at 12:02 PMView Comments

There Aren't That Many Serious Spammers Out There

Interesting analysis:

If there’s only a few large gangs operating—and other people are detecting these huge swings of activity as well—then that’s very significant for public policy. One can have sympathy for police officers and regulators faced with the prospect of dealing with hundreds or thousands of spammers; dealing with them all would take many (rather boring and frustrating) lifetimes. But if there are, say, five, big gangs at most—well that’s suddenly looking like a tractable problem.

Spam is costing us [allegedly] billions (and is a growing problem for the developing world), so there’s all sorts of economic and diplomatic reasons for tackling it. So tell your local spam law enforcement officials to have a look at the graph of Demon Internet’s traffic. It tells them that trying to do something about the spammers currently makes a lot of sense—and that by just tracking down a handful of people, they will be capable of making a real difference!

Posted on April 11, 2007 at 6:41 AMView Comments

Al-Qaeda or Teens?

From The Onion:

“In this day and age, it’s important for law-enforcement officials to consider global threats as well as local ones,” Steinhorst said. “We could be dealing with an al-Qaeda sleeper cell attempting to collect information that they could use to plan a terrorist strike or some of those goth kids who knocked over that mailbox. Neither group has any respect for the law.”

Excellent parody.

Posted on March 28, 2007 at 3:45 PMView Comments

Diplomatic Immunity

Interesting article about diplomatic immunity as a “get out of jail free” card in Germany.

Shopping for free involves no legal consequences for the roughly 6,000 diplomats in Berlin and their families. Protected by diplomatic immunity as guaranteed under international law, members of the diplomatic service have all sorts of options not available to others. They can ignore red lights without fear of being fined, race through a speed trap drunk, bully the maid or refuse to pay the workman’s bills.

Berlin’s public prosecutor’s office registered about 100 such offenses last year, including theft, traffic violations, fleeing the scene of accidents, and inflicting bodily harm. No one is keeping precise statistics. Those who get caught need only show their red diplomatic passport to get off scot-free in most cases.

Of course they’re being counterfeited:

It seems like everybody wants one of those nice red “get out of jail free” cards these days: Senior prosecutor Karlheinz Dalheimer warns that “counterfeit diplomatic passports have been a major problem recently.”

Posted on March 22, 2007 at 1:44 PMView Comments

Citizen Counter-Terrorists

The greater Manchester police want everyone to help them find terrorists:

In a new anti-terror drive, a tip-off hotline is being relaunched and an advertising campaign will urge people to report any suspicious behaviour. It asks:

* Do you know anyone who travels but is vague on where they’re going?

* Do you know someone with documents in different names for no obvious reason?

* Do you know someone buying large or unusual quantities of chemicals for no obvious reason?

* Handling chemicals is dangerous, maybe you’ve seen goggles or masks dumped somewhere?

* If you work in commercial vehicle hire or sales, has a sale or rental made you suspicious?

* Have you seen someone with large quantities of mobiles?

* Have you seen anyone taking pictures of security arrangements?

* Do you know someone who visits terrorist-related websites?

* Have you seen any suspicious cheque or credit card transactions?

* Is someone is asking for a short-term let on a house or flat on a cash basis for no apparent reason?

This reminds me of TIPS, the ill-conceived U.S. program to have meter readers and the like—people who regularly enter people’s homes—report suspicious activity to the police. It’s just dumb; people will report each other because their food smells wrong, or they talk in a funny language. The system will be swamped with false alarms, which police will have to waste their time following up on. This sort of state-sponsored snitchery is something you’d expect out of the former East Germany, or the Soviet Union—not the U.K.

For comparison’s sake, here’s a similar program that I actually liked.

Posted on March 20, 2007 at 12:26 PMView Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.