Chief Superintendent Kevin Mulligan have urged anyone harbouring Michael Cope, wanted in connection with the murder of Linzi Ashton, to give him up.
Ch Supt Mulligan said: "If anyone is harbouring this individual, they will be prosecuted."
He added that police believe he is still in the Salford area.
A man has been charged with assisting an offender in the manhunt for Michael Cope, wanted in connection with the murder of Linzi Ashton.
Detectives hunting murder suspect Michael Cope have arrested a man on suspicion of assisting an offender.
Police hunting a murder suspect wanted in connection with the "wicked" killing of a young mother are making door-to-door inquiries.