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Table 25.  Percentage of public schools reporting use of specified school practices: School year 200708
School practice Percent of schools
Require visitors to sign or check in  99
Control access to school buildings during school hours1  90
Control access to school grounds during school hours2  43
Require students to pass through metal detectors each day  1
Perform one or more random metal detector checks on students  5
Close the campus for most or all students during lunch  65
Use one or more random dog sniffs to check for drugs  22
Perform one or more random sweeps for contraband, but not including dog sniffs3  11
Require drug testing for athletes  6
Require drug testing for students in extracurricular activities other than athletics  4
Require drug testing for any other students  3
Require students to wear uniforms  18
Enforce a strict dress code  55
Provide school lockers to students  49
Require clear book bags or ban book bags on school grounds  6
Provide an electronic notification system that automatically notifies parents in the
   case of a school-wide emergency 
Provide a structured anonymous threat reporting system  31
Require students to wear badges or picture IDs  8
Require faculty and staff to wear badges or picture IDs  58
Use one or more security cameras to monitor the school  55
Provide telephones in most classrooms  72
Provide two-way radios to any staff  73
Prohibit all tobacco use on school grounds  91
1 Examples of controlled access to school buildings provided to respondents were locked or monitored doors.
2 Examples of controlled access to school grounds provided to respondents were locked or monitored gates.
3 Examples of contraband provided to respondents were drugs or weapons.
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), 2007–08 School Survey on Crime and Safety (SSOCS), 2008.