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

School practice Percent of schools  
Require visitors to sign or check in 99.8  
Control access to school buildings during school hours1 94.4  
Control access to school grounds during school hours2 41.9  
Require students to pass through metal detectors each day 1.5 !
Perform one or more random metal detector checks on students 9.4  
Close the campus for most or all students during lunch 78.3  
Use one or more random dog sniffs to check for drugs 43.3  
Perform one or more random sweeps for contraband, but not including dog sniffs3 20.1  
Require drug testing for athletes 7.3  
Require drug testing for students in extracurricular activities other than athletics 5.9  
Require drug testing for any other students 4.2  
Require students to wear uniforms 19.3  
Enforce a strict dress code 73.9  
Provide school lockers to students 78.0  
Require clear book bags or ban book bags on school grounds 11.4  
Provide an electronic notification system that automatically notifies parents in the case of a schoolwide emergency 70.9  
Provide a structured anonymous threat reporting system 47.7  
Require students to wear badges or picture IDs 11.9  
Require faculty and staff to wear badges or picture IDs 62.8  
Use one or more security cameras to monitor the school 73.4  
Provide telephones in most classrooms 77.2  
Provide two-way radios to any staff 77.5  
Limit access to social networking websites4 96.0  
Prohibit use of cell phone and text messaging devices5 97.1  
!Interpret data with caution. The standard error for this estimate is from 30 percent to 50 percent of the estimate's value.
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.
4,5These 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.
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).