A few hours before the Maryland State House went on lockdown Thursday, after someone phoned in a threat to Annapolis police, the Senate Finance Committee held a hearing on legislation to create a Center for Firearm Violence Prevention and Intervention. Senate Bill 475 is part of a package released in January by Gov. Wes Moore (D) and led by the legislature’s presiding officers. The center, to be housed within the Maryland Department of Health, would focus on a data-driven public health approach to prevent gun violence and on collaboration between state and local government agencies, hospitals and community-based violence intervention programs.