Police say they received reports of the incident in Lurgan shortly after midnight on Wednesday morning.
It was the second time Gail Chambers had perverted the course of justice by making a false rape claim.
Anita Downey, 51, a mother of three, bled to death on the floor of David Lyness’s Lurgan home.
It is the second positive test in Northern Ireland this year, but top vet says it is not unexpected.
Police say batons were used to break up a fight outside a bar on William Street in Lurgan.