JACKSON, Miss. — Lawyers working for Mississippi’s attorney general are presenting their case that the prosecutor in the state’s largest county improperly aided a defendant in a drug case.

But attorneys defending Hinds County District Attorney Robert Shuler Smith are renewing their claims that Smith was targeted after he began investigating the attorney general’s office.

Both sides presented opening arguments Tuesday, local media report, and prosecutors began calling witnesses.

Smith is charged with two counts of conspiring to hinder prosecution and one count of unlawfully providing advice to a criminal defendant.

In a first trial that ended in January, a jury could not agree on whether to convict him.

On July 19, the Mississippi Supreme Court rejected an appeal by Smith, who sought to avoid being retried on the same charges.