As part of their safety policies, some Chicago public schools now require students to use only clear bags to carry their books and supplies to class.
At Curie High School, 4959 South Archer Avenue, the policy has been in place for more than a week.
But students say they were caught off guard today they were told they would not be allowed to bring their old style multi-colored backpacks into the building because they would be violating school rules.
A message posted on the school website says students who show up at the school without clear backpacks will not be allowed in the building. They can leave those backpacks with security and pick them up at the end of the day.
But some students who spoke with WGN said using clear backpacks puts them at risk for having money, phones and other personal items stolen because it is easier to see those item in clear bags.
One student said he bought his clear backpack for $25. Others say they will have to do the same because they have no choice.
CPS tells WGN that no students were turned away from Curie High School. They were given the option to leave their old style book bags with security and pick them up at the end of the day. Some students chose not to do so.