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Juveniles as Offenders
Time of Day
Q: Does the time of day pattern for juvenile violent offending on school days and nonschool days vary by the type of offense?
A: Temporal patterns for incidents of robbery, aggravated assault, and sexual assault by juveniles vary for school days and nonschool days

Juvenile violent crime time-of-day profiles by offense
(Offenders per 1,000 juvenile offenders in offense category)

 
    Robbery    
 Aggravated assault         
  Sexual assault  
Time School Nonschool     School Nonschool       School Nonschool

6AM 2.6   4.3   2.3  2.9         5.1   5.1  
7AM 5.8   3.0   15.2  2.2         18.0   7.5  
8AM 7.6   3.6   20.0  4.1         40.0   28.7  
9AM 7.8   4.3   19.7  6.6         34.6   16.2  
10AM 10.8   7.0   20.4  7.4         37.3   17.5  
11AM 14.7   11.0   23.5  12.7         36.4   15.0  
12PM 17.7   15.0   28.5  15.9         49.5   37.4  
1PM 21.4   12.4   26.5  20.4         38.0   23.7  
2PM 29.6   18.7   40.7  21.6         45.7   25.1  
3PM 38.4   22.7   61.0  26.3         50.9   27.8  
4PM 34.5   26.2   48.4  28.6         38.7   26.2  
5PM 30.4   29.9   40.0  29.0         29.4   25.6  
6PM 37.2   30.7   35.0  31.2         24.1   22.4  
7PM 43.6   36.1   37.1  36.7         22.9   20.7  
8PM 53.2   38.9   33.4  34.7         21.4   21.1  
9PM 45.2   42.4   30.6  33.9         16.1   23.2  
10PM 35.1   48.1   21.6  36.1         14.1   19.7  
11PM 28.1   37.0   14.6  26.6         10.2   17.7  
12AM 20.0   30.8   10.9  23.1         8.0   16.5  
1AM 12.0   24.5   7.1  19.6         5.7   15.2  
2AM 6.0   16.9   5.3  14.4         4.4   10.7  
3AM 4.7   11.7   3.1  9.1         4.2   9.4  
4AM 2.1   7.7   2.0  5.4         1.4   5.9  
5AM 3.3   5.4   1.9  2.8         1.7   3.9  
6AM 2.6   4.3   2.3  2.9         5.1   5.1  

Note: Data are from law enforcement agencies in 35 states and the District of Columbia.

[ Graph version ]  [ Excel file ]

  • Unlike other violent crimes, the daily timing of robberies by juvenile offenders peaks in the late evening hours on both school and nonschool days.
  • Before 7 p.m., persons are more at risk of becoming an aggravated assault victim of a juvenile offender on school days than on nonschool days (i.e., weekends and all summer days).
  • Sexual assaults by juvenile offenders spike at 8 a.m. and noon on both school and nonschool days and at 3 p.m. on school days.

Internet citation: OJJDP Statistical Briefing Book. Online. Available: http://www.ojjdp.gov/ojstatbb/offenders/qa03302.asp?qaDate=2008. Released on December 21, 2010.

Adapted from Snyder, H. & Sickmund, M. (2006). Juvenile Offenders and Victims: 2006 National Report, Chapter 3. Washington, D.C.: Office of Juvenile Justice and Delinquency Prevention.

Data Source: National Archive of Criminal Justice Data. National Incident-Based Reporting System, 2008: Extract Files [Computer file]. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2010-08-13.

 

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