Juvenile arrests declined 35 percent between 1996 and 1998, as did the number of violent incidents in the schools.

Juvenile arrests for violent offenses declined 10% between 2008 and 2009, and overall juvenile arrests fell 9% during that same period.

Last year, the figure rose slightly, to 1.35 tons, but arrests for drug-related offenses declined, and the impatience of American officials has increased accordingly.

Overall juvenile arrests declined 12 percent in the period.

Though arrests have declined, he added, cocaine and marijuana confiscations are up.

The number of youths in detention is growing even though juvenile arrests have declined sharply.

But arrests last year declined sharply, he noted.

The bureau confirmed his arrest declined to answer further questions.

Statistics released in May 2012 showed arrests, evictions and tickets for liquor infringements have declined.

Until this year, arrests of prostitutes and massage parlor managers on the Island had been declining steadily since 1998, Nassau and Suffolk police data show.