In celebration of Law Day, police officers and judges traveled to schools around Centre County yesterday to teach children about law enforcement.

Officers spoke to the fifth grade students of Park Forest Elementary School, teaching them about crime scene investigations, fingerprints and composite sketches.

The point of the visit was to show children that police officers are good, District Judge Brad Lunsford said.

As the children sat attentively listening to the speakers, Lunsford's compact disc case was "stolen," which later became a theme with the detectives.

Patton Township Police Detective Chris Federinko taught students how officers take fingerprints at a crime scene. As the students gathered around Federinko, he demonstrated how officers would use special powders to find fingerprints.

"Anyone who is arrested for a serious offense will be fingerprinted, and they will be placed in a computer where they can be compared to see if there is any other fingerprints to match," Federinko said. "I talked with them about how everyone has their own fingerprint, how fingerprints are left at a crime scene and different ways to obtain fingerprints."

The students made a composite sketch of the CD-case thief in a later class with Detective Brian Sprinkle of the Ferguson Township Police Department. Sprinkle tested the students' memories by asking them to recreate the CD-case thief's features.

The children joined in saying, "No, she didn't look like that" and "That person looks like a terrorist."

At the end of Sprinkle's lesson, he showed the children a composite drawing of a real suspect.

Ferguson Township Police Officer, Ryan Hendrick, taught the children about crime scene investigations.

Hendrick set up a crime scene using students to hold cones, police tape and cameras.

One student excitedly said, "I know, I know. We need cones for the crime scene, and I know that because I watch CSI."

Hendrick said he had students involved in his demonstration to show how many people are involved investigating crimes.

"It's really important that people who investigate crimes do their jobs right," said Lunsford. "There are many guilty people in front of me in court, and if [the police officers] don't do their jobs well, than a guilty person could walk out of my court when they are really guilty."