At 1 a.m., officers responded to the 200 block of Windmill Road in Dartmouth for an unknown trouble call. A 50-year-old man was located with a stab wound to the back and a severe cut to his lips. The man was transported to the QE2 Hospital with non life threatening injuries. Officers learned that the man was involved in an altercation with a woman known to him. The woman's residence was checked but she could not be located. The file remains under investigation.