The jury ruled that neither sheriff's officials nor jailers committed a crime in their treatment of Bland.
It has not yet been determined whether the police officer who arrested her should face charges, a prosecutor said. The 28-year-old African-American was arrested after a confrontation with a policeman who had pulled her car over. She was found dead three days later. In the recent years, the deaths of black Americans in police custody have caused much debate and protests in the US. Police say that Ms Bland hanged herself while being held in the Waller County jail. The family have denied that she was suicidal and have accused the jail of being "reckless" in disregarding her safety and failing to keep her free from harm.