Terri-Marie Palmer, 23, of Warton Avenue, Heysham was handed the life sentence after being found guilty today following a week-long trial at Preston Crown Court.
Police officers were called to a caravan on Stud Farm Park in Morecambe in August last year after a 23-year-old man had been found with a serious stab wound to his chest.
Terri-Marie Palmer had called emergency services, saying that the victim, her boyfriend Damon Searson, had stabbed himself in the chest after they had been play-fighting with a knife and she had accidentally knocked the knife into him.
Damon was found on the floor near to the door inside the caravan with a duvet over him whilst Palmer was sat on the floor near to him. A blood stained knife was found on the sofa behind Mr Searson.
Paramedics tried to get Mr Searson to Royal Lancaster Infirmary to be treated but he went into cardiac arrest whilst en route to the hospital and was pronounced dead at 1.28am on arrival.
Following today’s result, senior investigating officer Det Insp Nina Foley from Lancashire Constabulary’s Force Major Investigation Team (FMIT) said, “This was a tragic case where a young man received a single stab wound to his chest during a domestic dispute with his girlfriend. Unfortunately, despite the best efforts of police officers and paramedics, the injury proved fatal.
“Palmer had attacked Damon Searson following an argument that night, giving different accounts to the ambulance service and attending police officers. She went on to give a further different versions during interview and her trial this week.
“The events of that night have had far reaching consequences and two families have been left devastated. Sadly, Damon Searson lost his life but Terri Palmer will have to live with the knowledge that she was the one responsible.”
The court had heard that the couple rowed over the amount of time Mr Searson spent on Facebook.
Palmer will serve a minimum of 12 years before she is eligible for parole.