Darien police have longstanding policies that already meet some of the calls for policing reforms since the death of George Floyd, First Selectman Jayme Stevenson said in an online talk given Tuesday morning. Police officials have had discussions with leaders of a Black Lives Matter march in town, and more are expected, she said. Public discussions and events organized by town groups are also expected, she said. But Stevenson said she’s concerned about the lack of respect in some of the discussions she’s heard in town about issues of race and police brutality. “We all have a lot to learn,” Stevenson said.