Six forensic pathologists make up the unit, providing a round-the-clock service to police, coroners and the public. They do about 1600 post mortems examinations each year. Around 190 are murders or suspicious deaths.
Three forensic pathologists have said they are barely coping with the workload.
"We're managing at the moment but our ability to do so is razor thin," a pathologist tells the magazine.
They say at least three more pathologists are needed to bring the workload to more manageable levels.
Unless staffing was bolstered there would be delays for families and hold-ups with processing cases through the justice system.
Powell said the Government needed to make sure the concerns raised about staffing were adequately addressed.
"We don't want to wait until a major disaster to find out that actually we don't have the people and resources we need to cope."