Four parents of children in the Conway School District have refiled a lawsuit that challenges the district`s drug-testing policy. They claim the tests are unconstitutional and invade students` privacy. The parents had filed suit in 2002, but the court action was dismissed in January 2003. Two months later, the judge ruled that the Faulkner County Circuit Court case could continue. The district has been administering drug tests to students in extracurricular activities. The lawsuit claims the random drug tests violate the state constitution and the equal protection clause of the US Constitution. In refiling the case, the parents also cite a 2002 Arkansas Supreme Court ruling that overturned the state`s sodomy law. In that case, the high court ruled the law unconstitutional on grounds it infringed on the right to privacy and equal protection. The district says it has no plans to change its policy.