Trick - Or - Treaters given toilet cleaner disks in hopkinton

STUDIOS IN BOSTON, WBZ AT 10 STARTS RIGHT NOW. CAUSTIC TREATS. THE TOILET TRAINING TABLETS ENDING UP INTO HALLOWEEN BAGS. POLICE ARE ON THE HUNT FOR A PERSON WHO COULD HAVE MADE CHILDREN VIOLENTLY SICK OR WORSE EXPECT WE HAD OUT TO -- WERE WORSE. Reporter: THESE ARE THE THINGS YOU THROW IN THE BACK OF YOUR TOILET TANK. THEY ARE A DANGEROUS MIX OF CHEMICALS, BLEACH AND TOXINS AND WHEN A LOCAL WOMAN FOUND ONE OF THESE IN HER CHILD'S BAD , SHE KNEW SHE HAD TO CALL THE POLICE. AT FIRST GLANCE, THIS MAY LOOK LIKE A CANDY, BLUE AND ROUND BUT THIS IS NO TREAT EUROPE IT IS A DANGEROUS TOILET BOWL CLEANING TABLET THAT WAS GIVEN OUT TO TRICK-OR-TREATERS. I CAN'T NOT -- I CANNOT IMAGINE ANYONE PLAYING THAT KIND OF JOKE YOUR COMPLETE TOMMY TO CHILDREN, 16 YEARS OLD IN 114 RESULT OF MAGES -- BOTH MADE THE DISCOVERIES. I WAS REALLY SURPRISED AT WHAT WENT ON. STEPHANIE'S SON WAS ALSO TRICK- OR-TREATING IN THE DOWNTOWN AREA AND SHE HAS GONE THROUGH HIS CANDY TO MAKE SURE. BENJAMIN SAYS HE HAS ITS OWN SYSTEM TO BE SAFE. IF I SEE SOMETHING THAT LOOKS SUSPICIOUS, I WILL USUALLY SPLIT IT OPEN IF IT LOOKS WEIRD. POLICE PUT THE WARNING OUT TO CHECK CANDY BAGS CAREFULLY AGAIN BUT FOR MOMS LIKE DANIEL ALWAYS, THEY WANT MORE INFORMATION. THE REACTION WAS WE HOPE IT WAS A MISTAKE. SOMEONE THAT DID NOT REALIZE WHAT THEY WERE DOING. POLICE TELL WBZ THEY DO NOT KNOW THE MOTIVE. THESE WORRIED PARENTS TELL US THEY ARE JUST RELIEVED IT WAS CAUGHT IN TIME IT. ADEPTLY SEEMS LIKE SOMETHING PEOPLE WILL HAVE TO BE MORE VIGILANT ABOUT. POLICE TELL ME THEY DO NOT BELIEVE THE KIDS ACTUALLY GRABBED THESE BUT MAYBE SOMEONE FLIPPED THEM INTO THE BACK WITHOUT THEM SEEING. THEY ARE WORRIED THERE COULD BE