Guards from the Spokane-based Phoenix Protective Corp. went to work this week at the district near Vancouver.
The Columbian reports at least two guards will patrol the district's three campuses for the rest of the school year.
The district also is encouraging students to ride school buses so their parents don't drive them. That's intended to reduce the number of adults arriving at a school.
Ridgefield had a police school security officer until the end of 2010, when money for the position ran out.
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