Descriptor
| High Schools | 1 |
| Police School Relationship | 1 |
| Prevention | 1 |
| School Vandalism | 1 |
| Security | 1 |
| Telecommunications | 1 |
| Violence | 1 |
Author
| Benedetti, M. E. | 1 |
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| California (Sacramento) | 1 |
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Benedetti, M. E. – American School and University, 1976
Teachers at John F. Kennedy Senior High School carry a mechanical ultrasonic device that can summon security personnel in seconds. (MLF)
Descriptors: High Schools, Police School Relationship, Prevention, School Vandalism
