A Hoppers Crossing man is one of three men who have handed themselves into police following an investigation into a suspicious device.
Police were called to the intersection of Prominent Road and Splendour Circuit, Diggers Rest on February 10 after a suspicious device was found attached to a sign post.
The police response resulted in traffic diversions and a number of residents temporarily displaced until the area was declared safe.
The device was assessed by police specialist units and declared not to be a risk to the community.
Following a letterbox drop and assistance from the community three males handed themselves into police.
A 25-year-old Hoppers Crossing man, a 27-year-old old Diggers Rest man and a 29-year-old Sunbury man are assisting police with their investigation.