A watchdog group with federal investigative authority says it is continuing to probe allegations of abuse made by immigrant teens held in a juvenile jail outside of Staunton. Advocates for the immigrant teens criticized the state’s review, which was limited to the facility’s current conditions and did not investigate past allegations of abuse, as flawed and superficial. The state investigators were only allowed to speak to the detainees in the presence of a jail staff member. The state, she said, didn’t find any evidence of abuse or neglect as defined under Virginia law. “In lay terms, the standard is whether the treatment falls below the established standard of professional judgement,” she said.