BALTIMORE (AP) - A trial over whether the state of Maryland has successfully dismantled segregation-era policies that disadvantaged historically black universities has come to a close.

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Lawyers for the state of Maryland and for a group of students and alumni of Maryland's four historically black universities sparred Friday over that question. They were giving closing arguments in the case before a judge in federal court in Baltimore.

The lawsuit, which was filed in in 2006, argues that Maryland has failed to change policies and practices that have marginalized historically black institutions. Maryland says it has.

The judge heard six weeks of testimony in the case earlier this year. She did not say Friday when she will rule.