CATHY HERNANDEZ, KPRC CHANNEL 2 NEWS. THREATS BY A KATY JUNIOR HIGH SCHOOL STUDENT FORCED ADMINISTRATORS TO EVACUATE THAT CAMPUS TODAY. TURNED OUT TO BE A FALSE ALARM. BUT THREATS SUCH AS THE ONE IN KATY ARE AT A FIVE-YEAR HIGH IN HOUSTON-AREA CAMPUSES. THE SAME IS TRUE ABOUT GANG VIOLENCE AND ASSAULTS ON STAFF. CHANNEL 2 INVESTIGATES HAS NEW NUMBERS SHOWING WHICH CAMPUSES HAVE THE BIGGEST PROBLEMS. INVESTIGATOR ROBERT ARNOLD REVEALS THAT LIST AND HOW YOU CAN CHECK CRIME AT YOUR CHILD'S SCHOOL. Reporter: FROM THREATS TO SCHOOLS -- THE KIDS WERE SCARED. THE KIDS ARE PANICKED. Reporter: TO GANG VIOLENCE. THEY SEE WHAT THEY SEE ON TV. AND THEY WANT TO LIVE THAT LIFE. Reporter: TO ATTACKS ON TEACHERS. WE SIMPLY CANNOT STAND FOR VIOLENCE SCHOOL EMPLOYEES BY ANYONE. Reporter: ALL OF THESE OFFENSES ARE AT A FIVE-YEAR HIGH. CHANNEL 2 INVESTIGATES LOOKED AT DISCIPLINE RECORDS FOR ALL SCHOOLS IN HARRIS, FORT BEND COUNTY, MONTGOMERY COUNTY, GOISTLES AND BRAZORIA COUNTIES. TAYLOR AND ELSIK HIGH SCHOOLS REPORTED THE MOST GANG-RELATED INCIDENTS WITH 16. ALIEF OFFICIALS TELL US THESE NUMBERS DON'T RESPECT A WIDESPREAD PROBLEM, RATHER AN AGGRESSIVE STANCE TOWARD REPORTING ANYTHING SEEMINGLY GANG RELATED FROM A DRAWING ON A NOTEBOOK OR T-SHIRT TO SOMEONE FLASHING A GANG SIGN. EVEN STUDENTS TELL US IT'S ONLY A HANDFUL OF KIDS CAUSING TROUBLE. THEY'RE JUST YOUNG. THEY DON'T KNOW HOW TO LIVE. THERE'S ALWAYS A RISK OF OTHER KIDS BEING RECRUITED. Reporter: DR. LACKARA HEAD AS CRIMINOLOGY PROGRAM AT THE UNIVERSITY OF ST. THOMAS. HE KNOWS FIRSTHAND ABOUT GANG LIFE. MY BROTHER WAS A GANG LEADER. Reporter: HE SAYS SCHOOLS AND PARENTS IMMEDIATELY DEALING WITH THE FIRST SIGNS OF GANG INFLUENCE IS KEY TO STOPPING A KID FROM BEING RECRUITED. IF YOUR SID KID IS GOING TO SCHOOL, THAT MEANS HE'S NOT A HARD-CORE GANG MEMBER THAT. MEANS THERE'S STILL HOPE FOR HIM. Reporter: DISRESPECT FOR AUTHORITY IS ANOTHER PROBLEM. LIKE THIS SPRING ISD STUDENT CAUGHT ON CAMERA SLAPPING A TEACHER IN 2014. HAVE KIDS LOST THAT SENSE OF THIS IS AN AUTHORITY FIGURE? I HAVE TO FOLLOW THE RULES? HAVE THEY LOST SOME OF THAT? YEAH. I THINK SO. Reporter: IN STATE RECORDS SHOW LAST YEAR CYPRESS RIDGE HIGH SCHOOL REPORTED THE MOST ASSAULTS ON TEACHERS AND STAFF IN OUR AREA WITH SIX. ZEB WAP CAPO IS PRESIDENT OF THE HOUSTON FEDERATION OF TEACHERS. WE'VE GOT TO MAKE SURE THAT WE'RE SETTING A VERY EARLY MESSAGE THAT CONSEQUENCES MATTER. YOUR BEHAVIOR MATTERS. Reporter: THE THIRD CATEGORY WE LOOKED AT WAS THREATS AGAINST SCHOOLS. WESTFIELD HIGH SCHOOL REPORTED THE MOST WITH 11. DISTRICT OFFICIALS SAY SOME CASES MAY HAVE BEEN MISREPORTED BUT NONETHELESS, CALLED THE NUMBERS DISAPPOINTING. SOCIAL MEDIA HAS MADE THREATS AT SCHOOLS A PROBLEM FOR EVERY DISTRICT. LEE AND STERLING HIGH SCHOOLS HAD A COMBINED 21 THREATS REPORTED LAST MONTH. THIS INSTAGRAM POST CAUSED THEM TO SHUT DOWN SEVERAL SCHOOLS.ú THIS IS WITH ALL MY KIDS COME TO THE SCHOOL AND THEY SAY IT'S GOING TO BE A BOMB. Reporter: SOME PROBLEMS LIKE FIGHTING HAVE ACTUALLY DECREASED IN THE PAST FIVE YEARS. IF YOU WANT TO LOOK UP YOUR CHILD'S SCHOOL, HEAD TO THE INVESTIGATES SECTION OF CLICK2HOUSTON.COM. WE'VE MADE IT EASY TO SEARCH.