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Table 25.  Percentage of public elementary schools reporting use of specified school practices: School year 2009–10

School practice Percent of schools  
Require visitors to sign or check in 99.3  
Control access to school buildings during school hours1 93.8  
Control access to school grounds during school hours2 50.8  
Require students to pass through metal detectors each day  
Perform one or more random metal detector checks on students 1.9  
Close the campus for most or all students during lunch 61.9  
Use one or more random dog sniffs to check for drugs 4.0  
Perform one or more random sweeps for contraband, but not including dog sniffs3 3.6  
Require drug testing for athletes 1.3 !
Require drug testing for students in extracurricular activities other than athletics 1.2 !
Require drug testing for any other students  
Require students to wear uniforms 21.5  
Enforce a strict dress code 49.3  
Provide school lockers to students 30.7  
Require clear book bags or ban book bags on school grounds 2.9  
Provide an electronic notification system that automatically notifies parents in the case of a schoolwide emergency 61.1  
Provide a structured anonymous threat reporting system 30.1  
Require students to wear badges or picture IDs 2.4  
Require faculty and staff to wear badges or picture IDs 67.6  
Use one or more security cameras to monitor the school 50.6  
Provide telephones in most classrooms 72.7  
Provide two-way radios to any staff 75.4  
Limit access to social networking websites4 92.4  
Prohibit use of cell phone and text messaging devices5 92.6  
!Interpret data with caution. The standard error for this estimate is from 30 percent to 50 percent of the estimate's value.
‡Reporting standards not met. The standard error represents more than 50 percent of the estimate.
1Examples of controlled access to school buildings provided to respondents were locked or monitored doors.
2Examples of controlled access to school grounds provided to respondents were locked or monitored gates.
3Examples of contraband provided to respondents were drugs or weapons.
45These items are new to the 2009–10 School survey on Crime and Safety.
NOTE: Responses were provided by the principal or the person most knowledgeable about crime and safety issues at the school. Elementary schools are defined as schools in which the lowest grade is not higher than grade 3 & the highest grade is not higher than grade 8.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics (NCES), 2009–10 School Survey on Crime and Safety (SSOCS).