Jennifer Love Hewitt's fiance is at the centre of a battery investigation after allegedly lashing out at a paparazzo last week (ends06Sep13).

Brian Hallisay grew annoyed with the snapper when he refused to stop taking shots of him and his pregnant girlfriend as they were leaving a Los Angeles restaurant and an altercation ensued, according to reports.

The photographer later filed a battery report against Hallisay, and police are investigating the confrontation.