The U.S. has less than 5 percent of the world’s population but almost a quarter of its prisoners.














“In no country is criminal justice administered with more mildness than in the United States,” Alexis de Tocqueville, who toured American penitentiaries in 1831, wrote in “Democracy in America.”

No more.






“The assault rate in New York and London is not that much different,” said Marc Mauer, the executive director of the Sentencing Project, a research and advocacy group. “But if you look at the murder rate, particularly with firearms, it’s much higher.”






Many American prosecutors, on the other hand, say that locking up people involved in the drug trade is imperative, as it helps thwart demand for illegal drugs and drives down other kinds of crime. Attorney General Michael B. Mukasey, for instance, has fought hard to prevent the early release of people in federal prison on crack cocaine offenses, saying that many of them “are among the most serious and violent offenders.”


Burglars in the United States serve an average of 16 months in prison, according to Mr. Mauer, compared with 5 months in Canada and 7 months in England.

Many specialists dismissed race as an important distinguishing factor in the American prison rate. It is true that blacks are much more likely to be imprisoned than other groups in the United States, but that is not a particularly distinctive phenomenon. Minorities in Canada, Britain and Australia are also disproportionately represented in those nation’s prisons, and the ratios are similar to or larger than those in the United States.

Some scholars have found that English-speaking nations have higher prison rates.

“Although it is not at all clear what it is about Anglo-Saxon culture that makes predominantly English-speaking countries especially punitive, they are,” Mr. Tonry wrote last year in “Crime, Punishment and Politics in Comparative Perspective.”

“It could be related to economies that are more capitalistic and political cultures that are less social democratic than those of most European countries,” Mr. Tonry wrote. “Or it could have something to do with the Protestant religions with strong Calvinist overtones that were long influential.”

The American character — self-reliant, independent, judgmental — also plays a role.

“America is a comparatively tough place, which puts a strong emphasis on individual responsibility,” Mr. Whitman of Yale wrote. “That attitude has shown up in the American criminal justice of the last 30 years.”

French-speaking countries, by contrast, have “comparatively mild penal policies,” Mr. Tonry wrote.



Whatever the reasons, there is little dispute that America’s exceptional incarceration rate has had an impact on crime.

“As one might expect, a good case can be made that fewer Americans are now being victimized” thanks to the tougher crime policies, Paul G. Cassell, an authority on sentencing and a former federal judge, wrote in The Stanford Law Review.

From 1981 to 1996, according to Justice Department statistics, the risk of punishment rose in the United States and fell in England. The crime rates predictably moved in the opposite directions, falling in the United States and rising in England.

“These figures,” Mr. Cassell wrote, “should give one pause before too quickly concluding that European sentences are appropriate.”






“Unfortunately, a lot of the answer is democracy — just what Tocqueville was talking about,” he said. “We have a highly politicized criminal justice system.”