We are appealing for information to help trace a dog walker after a homeowner was attacked during an aggravated burglary in Rishton.
Around 9.30pm on November 10, the victim, a man in his 20s, heard a knock at the door of his property in Talbot Street.
A woman was stood in the doorway and following a brief conversation, three men entered the address, attacking the man with a hammer and axe.
The men took £40, with the victim suffering minor injuries.
The woman had earlier left the scene, with the attackers making off in a black Volkswagen Bora car parked in an alleyway behind Talbot Street.
Police are appealing for information and are keen to speak to a dog walker who might have witnessed the men leaving the scene.
Det Con Jo Billington, of Blackburn CID, said: “This was a shocking incident which left the victim very shaken and requiring medical treatment.
“We believe a dog walker was in the area around the time of the offence and might have witnessed the offenders leaving the scene.
“If this was you, please come forward.”
Anyone with information can contact police on (01254) 353662 or email [email protected] quoting log reference 0300 of November 13.
Alternatively, independent charity Crimestoppers can be contacted anonymously on 0800 555111 or online at crimestoppers-uk.org.