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Indicators of School Crime and Safety: 2011
NCES 2012-002
February 2012


Table 20.1.

Percentage of public schools that used safety and security measures: Various school years, 1999–2000 through 2009–10


School safety and security measure 1999–2000 2003–04 2005–06 2007–08 2009–10
Controlled access during school hours          
Buildings (e.g., locked or monitored doors) 74.6 83.0 84.9 89.5 91.7
Grounds (e.g., locked or monitored gates) 33.7 36.2 41.1 42.6 46.0
Closed the campus for most students during lunch 64.6 66.0 66.1 65.0 66.9
Drug testing and tobacco use          
Any students 4.1 5.3
Athletes 4.2 5.0 6.4 6.0
Students in extracurricular activities (excluding athletes) 2.6 3.4 4.5 4.6
Any other students 3.0 3.0 3.0
Prohibited all tobacco use on school grounds 90.1 88.8 90.3 91.4
Required to wear badges or picture IDs          
Students 3.9 6.4 6.1 7.6 6.9
Faculty and staff 25.4 48.0 47.8 58.3 62.9
Metal detector checks on students          
Random checks1 7.2 5.6 4.9 5.3 5.2
Required to pass through daily 0.9 1.1 1.1 1.3 1.4
Sweeps and technology          
Random dog sniffs to check for drugs1 20.6 21.3 23.0 21.5 22.9
Random sweeps for contraband1,2 11.8 12.8 13.1 11.4 12.1
Provided telephones in most classrooms 44.6 60.8 66.8 71.6 74.0
Electronic notification system for schoolwide emergency 43.2 63.1
Structured, anonymous threat reporting system 31.2 35.9
Used security cameras to monitor the school1 19.4 36.0 42.8 55.0 61.1
Provided two-way radios 71.2 70.8 73.1 73.3
Limited access to social networking websites from school computers 93.4
Prohibited use of cell phones and text messaging devices 90.9
Visitor requirements          
Sign in or check in 96.6 98.3 97.6 98.7 99.3
Pass through metal detectors 0.9 0.9 1.0
Dress code          
Required students to wear uniforms 11.8 13.8 13.8 17.5 18.9
Enforced a strict dress code 47.4 55.1 55.3 54.8 56.9
School supplies and equipment          
Required clear book bags or banned book bags on school grounds 5.9 6.2 6.4 6.0 5.5
Provided school lockers to students 46.5 49.5 50.6 48.9 52.1
— Not available.  
1 One or more checks, sweeps, or cameras.  
2 For example, drugs or weapons. Does not include dog sniffs.  
NOTE: Responses were provided by the principal or the person most knowledgeable about crime and safety issues at the school. Respondents were instructed to respond only for those times that were during normal school hours or when school activities or events were in session, unless the survey specified otherwise.
SOURCE: U.S. Department of Education, National Center for Education Statistics, 1999–2000, 2003–04, 2005–06, 2007–08, and 2009–10 School Survey on Crime and Safety (SSOCS), 2000, 2004, 2006, 2008, and 2010.
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