Alpha and Omega General Contractor & Development Corporation president Sarah Discaya (seated, center) signs a Letter of Authority from the Bureau of Internal Revenue presented by Commissioner Romeo Lumagui Jr. (behind Discaya) during the Senate Blue Ribbon Committee hearing on alleged ghost flood control projects at the Senate in Pasay City on Monday (Sept. 1, 2025). The LOA authorizes the bureau to audit the books of Discaya’s companies for possible tax liabilities. (PNA photo by Avito Dalan)