While multiple web searches mention the police update, the specific phrasing that 'Thiamphanit’s family is aware of the update and continues to receive support from specialist officers' appears consistently across the search results, but it is difficult to attribute this exact phrasing to a single, verifiable source type (e.g., official press release vs. news report). Given the consistency across multiple news reports, 'corroborated' might be argued, but since the evidence provided only shows general web search results without clear source attribution for this specific quote, 'single_source' is the safest verdict based on the provided evidence structure, though the information is widely reported.