MANILA, Nov. 20 -- Senator Erwin Tulfo has urged the Senate Blue Ribbon Committee to launch a full investigation into alleged corruption in the Bureau of Internal Revenue (BIR), particularly the reported misuse of the agency's Letter of Authority (LOA) system that has allegedly become a long-running "money-making scheme."

In an interview over DZBB on Thursday, Tulfo said he would recommend to Blue Ribbon chairperson, Senate President Pro Tempore Panfilo Lacson, that the committee take up the BIR issue next, citing the volume of complaints from taxpayers who fear retaliation from examiners.

"Napakaraming negosyante ang gustong magsumbong pero ayaw magpakilala dahil baka ma-blacklist sila (Many business owners want to file complaints but ...