To help combat child predators, the Hacienda La Puente Unified School District is passing out whistles to students in grades kindergarten through sixth.

The new school police chief Tony Argott will visit two schools on Thursday to give a short safety presentation and to pass out the whistles.

Argott will talk to the kids at Wedgeworth Elementary in Hacienda Heights in the morning, then the students at Sparks Elementary in La Puente in the afternoon.