Blood on the tip of a knife and DNA are the focus in the trial of a Johnson City Police Officer.
31 year old Matthew Romano is accused of lying about an attack.
Action News reporter Gabe Osterhout is following the trial in Broome County Court.
Blood found on the tip of a knife that Romano was carrying matches his DNA profile.
But there was another person's DNA on the handle.
Johnson City Officer Matthew Romano is accused of lying about how he was injured on duty.
In December 2006, Romano was found stabbed in the Calvary Cemetary.
He claimed he pulled up behind a white car with two black men inside.
Romano said one attacked him.
The officer was found face down with stab wounds and facial injuries.
After an investigation, police decided that Romano stabbed himself.
Forensic scientist Tanika Warden testified that all the blood found at the scene matched Romano.
And blood on the tip of a knife found inside his vest also matched his DNA.
Under cross examination, Warden admitted she could not determine how long the blood had been on the knife.
Plus, DNA from another source was found on the handle of the knife, and on Romano's shirt.
But there wasn't enough for a sample to test and determine who that DNA belonged to.
Warden says anyone could have left their DNA on both items, just by touching them.
Romano is charged with 2 counts of filing a false instrument.
He is currently on unpaid suspension from the Johnson City police department.
Testimony will resume Monday morning before Judge Martin Smith.
Romano waived his right to a trial by jury.
In the newsroom, I'm Gabe Osterhout.