He was assigned as the spokesman of the Philippine National Police in 2002, in the time of PNP chief General Hermogenes Ebdane, and in 2009 to 2010, in the time of PNP chief General Jesus Verzosa.

[6] Anti-kotong efforts were launched, but his son was later a victim of the corrupt police's kotong scheme.

[7] After stint with the Metro Manila's police force, In July 11, 2013, Espina was appointed to be the chief of the Directorial Staff of the PNP.

In his service as an OIC chief, he led the efforts to give justice to the fallen 44 Special Action Force officers.

[8] Espina was awarded the Presidential Legion of Honor by President Benigno Aquino III.