In a debate that includes major business and legal groups and raises separation-of-powers questions, the Florida Supreme Court will decide whether to reject a controversial 2013 law that tightened a standard for expert witnesses who testify in the state’s courtrooms.

Arguments have flooded into the Supreme Court since mid-March after The Florida Bar Board of Governors and a key Bar committee recommended that justices reject the standard. While the issue is somewhat esoteric, it is part of a decadeslong fight in Tallahassee between business groups and plaintiffs attorneys about restrictions on lawsuits.