Photo Gallery: Contraband-sniffing dog visits La Cañada High School

A contraband-sniffing dog named Cali, with handler Bill Wigodsky from Interquest Detection Canines, checks a classroom for any potential illegal substances at La Cañada High School in La Cañada Flintridge on Thursday, April 20, 2017.

A contraband-sniffing dog named Cali, with handler Bill Wigodsky from Interquest Detection Canines, checks a lockers for any potential illegal substances at La Cañada High School in La Cañada Flintridge on Thursday, April 20, 2017.

A contraband-sniffing dog named Cali, with handler Bill Wigodsky from Interquest Detection Canines, checks a parked cars for any potential illegal substances at La Cañada High School in La Cañada Flintridge on Thursday, April 20, 2017.

La Cañada High School students pet Cali, a contraband-sniffing dog from Interquest Detection Canines.

A contraband-sniffing dog named Cali, with handler Bill Wigodsky from Interquest Detection Canines, checks a water fountain for any potential illegal substances at La Cañada High School in La Cañada Flintridge on Thursday, April 20, 2017.

A contraband-sniffing dog named Cali checked for any potential illegal substances at La Cañada High School in La Cañada Flintridge on Thursday, April 20, 2017.