Some Round Rock students no longer face charges they violated the city's daytime curfew by participating in immigration protests in March.
A judge dismissed the cases of five students after prosecutors filed motions to drop the charges earlier this month.
Round Rock City Attorney Steve Sheets says prosecutors would have had to prove that the students were not exercising free speech rights.
Police ticketed the students on March 31st when they walked out of class to join in immigration rallies. Nearly 100 students pleaded not guilty in May.
Sheets says the five cases were among the first six that prosecutors began reviewing. Cases against 93 other students are pending.
Ernest Saadiq Morris of the Texas Civil Rights Project says the students should never have been charged in the first place because they were exercising their rights to free speech during the protest.
The nonprofit group is representing most of the students for free.