The lawyer of a woman charged with slashing another woman's face claimed the prosecutions' case failed to prove that she is guilty.

Defence lawyer Rick Woolridge told A Supreme Court jury in his closing speech repeatedly that his client, Sharde Dorika Hassell, acted in self-defence when she cut alleged victim, Janai Caldwell's face with an object she picked up off the ground when Ms Caldwell was allegedly on top of her.

Hassell, 21, and Janika Ashley Powell, 22, are both charged with causing grievous bodily harm to Ms Caldwell. They deny the charges. Proceedings against Christopher Lima Ferreira, 22, were discontinued by Deputy Director of Public Prosecutions Michael McColm on at the start of the trial.

During his closing, Mr. Woolridge said the prosecutions case "doesn't make sense" and denied his client began the altercation by shoving Ms Caldwell first on St. John's Road.

"This is a girl who didn't have the nerve to say something to her in the club but is suddenly bold enough to confront her in the street? It's the prosecutions' own witnesses that are diametrically opposed to one another."

The jury heard his client doesn't deny hitting Ms Caldwell, however the act was done in self-defence.

"It's not a case for her to prove that she was, it's for the crown to prove that she wasn't. The crown has failed to prove that Sharde Hassell either intentionally inflicted grievous bodily harm or unlawfully wounded Janai Caldwell."

Closing for the prosecution, Mr. McColm told the jury they don't have to believe all of what the crown's witnesses said, but rather take the parts they think are reliable.

He also told the jury because there are many different versions of what happened the night of May 25 into the morning of May 26, 2007, they must decide who is telling the truth.

"What happened? We've got different stories. We've got the evidence of Ms Caldwell and the evidence of Ms Hassell. What do you think happened? As a jury, that's your job to determine what happened."

Charles Richardson, Powell's lawyer, also asked the jury to decide which story they wanted to believe.

He said the only person who put his client on the scene restraining Ms Caldwell is Ms Caldwell herself. He told the jury no one ever gave evidence of Powell fighting or even touching the alleged victim.

Mr. Richardson told the court if they believe Hassell was acting in self-defence, they cannot find Powell guilty of assisting her. "What did Janika Powell do to help anyone carry out any objective? Where's the evidence of that?"

He continued: "We don't play games in this court. We have to decide if someone is guilty of a criminal offence. You can never be sure Janika Powell assisted Sharde Hassell. The evidence here cannot and will not make you sure. "

The trial is expected to finish today as Puisne Judge Charles-Etta Simmons sums up the evidence.