Manila, Sept. 8 -- Department of Public Works and Highways (DPWH) Secretary Vince Dizon on Monday formally filed a referral for investigation and filing of criminal charges against government officials and private entities involved in anomalous infrastructure projects in the agency's Bulacan 1st District Engineering Office (DEO) before Acting Ombudsman Dante Vargas.

Included in the referral was a copy of the special audit report dated Aug. 25 of the DPWH's Internal Audit Service (IAS) on flood control projects implemented under the Bulacan 1st DEO.

It focused on three firms: Wawao Builders based in Quezon City; SYMS Construction Trading based in Malolos, Bulacan; and St. Timothy Construction Corporation based in Pasig City.

"The IAS re...