Prior to joining the campaign, he was a law practitioner and a co-convener for the Black and White Movement, an organization of civil society groups calling for transparency and accountability in government.[3] He served as the legal counsel of whistleblower of Rodolfo “Jun” Lozada during the Senate investigation on the NBN-ZTE controversy.[4]
Lacierda was also part of the Optical Media Board from 2004 to 2007, representing the academe.