The most common technical occurrence of this phrase is in the official amendments to Maryland House Bill 575 . In this context, "subtitle" refers to a specific section of the Maryland code being amended to include "FELONY" as a classification for DNA sample collection.
If you are looking for a published scholarly work, the most likely match is a book/research project by which features "Felony" prominently in its subtitle. Title : Citizens into Dishonored Felons subtitle Felony
: Critiquing the effectiveness of fixed sentences for felony offenses. The most common technical occurrence of this phrase
: This work explores the historical evolution of felony disenfranchisement and the social "dishonor" attached to felony convictions in Germany during the 19th and early 20th centuries. Related Research Topics subtitle Felony