Under cross-examination by the defense, Dr Li Wei-sum was asked whether she agreed with the statement, read out from a medical textbook, that bruises found in those areas were consistent with the scenario where ``someone was putting up their hands to protect oneself from an attack,'' hence the bruises on the back of the hand.

``It can be,'' she replied.

Kissel, 41, is accused of serving her husband, Robert, a milkshake laced with sedatives and beating him to death with a heavy metal ornament as he lay unconscious in their Parkview apartment on November 2, 2003.

Kissel told a doctor and the police at the time that her banker husband had been drunk and assaulted her after she refused him sex, and that he then disappeared.

She denies the charge and is out on bail.

Her husband's decomposing body was found wrapped in a carpet in a storeroom in the Parkview residential complex in Tai Tam on November 7, 2003.

Li testified Monday that she had treated Kissel on November 7 when she was escorted to Ruttonjee hospital by police.

She said she found abrasions on Kissel's lip, chest, knees and feet. There were also bruises on her upper and lower forearms, shoulders and back of her hands. The color of the bruises suggested they were caused one or two days earlier.

Li also said elevated levels of the enzyme creatine kinase (CK) in blood taken from Nancy Kissel could be a sign of damage to the muscles surrounding the arms, legs and ribs due to either physical injury, strenuous exercise, a heart attack or some other medical conditions.

``Someone can come off a rugby field or out of a boxing ring with damage to [those] muscles?'' senior defence counsel Alexander King asked.

``Yes,'' she replied.

``Someone can come out of a fight with damage to [those] muscles and these matters can cause a rise to your CK levels,'' King said. Li agreed to the assertion.

``Given that the accused did not have a heart attack, does not suffer from any relevant medical conditions and had bruises in areas described by medical textbooks as being `classic positions' for defensive injuries, a possible cause of the elevated CK reading is a result of Mrs Kissel receiving blunt force injuries - is it not?'' King asked the doctor.

Li replied, ``It can reflect Nancy Kissel had muscle injuries, but I cannot be sure she received blunt force injuries.''

On re-examination by prosecutor Peter Chapman, Li agreed she had ``conceded'' to King that she thought the bruises could have been made two to three days before examination, rather than one to two.

Since she examined the accused on November 7 - a Friday - ``if you go back three days, that would take us back to Tuesday morning,'' Chapman told Li.

She had agreed with King that using the color to determine the age of the bruising was only a general guideline and that it was better to say whether it was ``recent or old.''

Li said the muscle injuries could also have been caused by ``heavy exercises using the shoulder muscles, lifting of a heavy weight or early starters to gym exercises.''

Chapman said at the opening of the trial that the injuries were due to ``the considerable effort in wrapping the body with the carpet - and placing the body in the rug.''

Also Tuesday, Anthony Hung, the head of the debt market for the Asia Pacific region at Merrill Lynch - who was once Robert Kissel's former superior at the investment bank - described the him as ``a very good colleague.''

``I found him a very straightforward person, easy to work with and a very good businessman,'' he said.

Regarding Robert Kissel's drinking habits, Hung said he was ``just like many of the colleagues that I have,'' in that he drank wine on appropriate occasions, such as with dinner.

When police searched Robert Kissel's office on November 14, Hung and the firm's chief administrative officer, John Thurlow, were present, he said.

``I was the one making the decision about whether the e-mail was business or personal,'' Hung said. He said he then downloaded unopened personal e-mails onto a disk for the police.

But it was Thurlow who originally started up the computer, because he knew Robert Kissel's password, Hung said.

Police officer Chau Man-yee, who received the disk from Hung that day, testified Tuesday that the ``password was entered by a person surnamed Hung.''

The case continues today before justice Michael Lunn.

albert.wong@singtaonewscorp.com