This is a Corellian Engineering HLAF-500 (Heavy/Light Attack Fighter). It was built as a system patrol craft, primarliy for use in policing and anti-pirate duties. Pictured here is the HLAF that belonged to Hal Horn, and you can see it trimmed out in CorSec colors - after all, it is a Corellian fighter.
I built this ship mainly from a picture at the TFHB Techincal database. It is built from spare parts.