A Detroit-area district says it's allowing Sikh students to wear a small, religious dagger to school, MyFoxDetroit.com reports.

The decision by the Plymouth-Canton Community Schools reverses a ban put in place in December after a fourth-grader at a Canton Township elementary school was found with a dull, 3- to 5-inch kirpan.

The kirpan represents a commitment to fight evil in the Sikh tradition. The dagger is a religious symbol that baptized Sikh males are expected to carry.

The principal initially let the boy keep the kirpan, but the school board instituted a ban because of parental concerns and conflicts with the district's rules against bringing weapons to school.

The Detroit Free Press and WXYZ-TV report that under the new guidelines, kirpans meeting certain criteria will be allowed for Sikh students.

Click to read more on the religious dagger at school at MyFoxDetroit.com

The Associated Press contributed to this report