The first test of a new anti-hazing law in Florida—the trial of five Kappa Alpha Psi fraternity brothers accused of beating a pledge at Florida A&M University—was postponed on Monday, when a county judge declared a mistrial.

The alleged hazing victim, Marcus Jones, says that he suffered “serious bodily injury” in the incident. Beatings left him with a ruptured eardrum and bruised buttocks that required surgery, he says.

Under the 2005 state law—which is named for Chad Meredith, a University of Miami student who drowned in 2001 while pledging a fraternity—hazing qualifies as a felony if it results in death or “serious bodily injury.”

The judge, Kathleen F. Dekker, declared a mistrial when jurors told her that they did not understand what “serious bodily injury” was, and how exactly the condition differed from moderate injury. According to the Tallahassee Democrat, she told them there was no further legal definition available.

It was not immediately known if the prosecutor planned to retry the defendants.