Portland schools alone received 17 bomb threats last academic year, a legislative study committee was told. Statistics on those incidents:

Total average cost per re-sponse: $120

Single highest cost: $950

Lowest cost: $40

Average time spent on bomb threats: 1.6 hours

Longest time: 5 hours

Least time: 0.5 hour

Average cost per response: $18/hour per officer

Supervisor: $33/hour

Per vehicle: $10/hour

On average, 2.6 officers and 1.1 supervisors responded to threats.

Six of 12 suspects were apprehended. Suspects’ average age was 14.

States that revoke driving privileges of juveniles convicted of making bomb threats: Maryland, New York, North Carolina and Vermont