Initially formed as a side-project to Justin's then primary band Dusk Delight, the group quickly turned full-time, with Mitja Lipicer and Ziga Zmazek joining that same year.

The band struggled to find a vocalist initially and performed as an instrumental outfit for several shows before eventually settling with Lenz in 2003.

That same year, Justin ultimately quit Dusk Delight to fully focus on Negligence, after he had already recorded guitars for their debut album Stories.

[7][8] The band once again went on tour and supported several well known thrash metal acts such as Exodus, Forbidden,[9] Sadus, Heathen,[10] Death Angel, etc.

At the end of 2009, after the recording of their second album took place, Negligence privately parted ways with Domen Justin and replaced him with Aljosa Orlovic of Scaffold fame.