The 18-year-old man accused of bashing an assistant police commissioner in Melbourne claims he's been targeted with hundreds of death threats.

Speaking to Nine News on Monday, Isaiah Stephens also questioned whether he would still "have the book thrown" at him if the victim of the alleged attack last month was not assistant commissioner Chris O'Neill.

Isaiah Stephens, 18, accused of bashing Assistant Police Commissioner Chris O'Neill with his brother, speaks to Nine News. Credit:Nine News

Isaiah and his brother Jay, 20, are charged over the assault in the grounds of St Kevin's College in Toorak, after the pair had allegedly been asked to get off a train for unruly behaviour.

Isaiah was granted bail last month.