Image caption, In 2007, Spencer Beynon spoke to Hfrance.fr Wales about his experiences in Iraq
A Taser wound "contributed little " to the death of a former soldier, according to an investigation.
Platoon Sergeant Spencer Beynon, 43, of Llanelli, Carmarthenshire, died after officers were called in June 2016 over concerns about his behavior.
He was diagnosed with post-traumatic stress disorder (PTSD) after tours in Afghanistan and Iraq.
Pathologist Dr Richard Jones told the investigation that the "most important " injury was an injury around Mr. Beynon's neck.
The investigation previously learned that the agents had found Mr Beynon unconscious on the floor with his back against the wall of a house in Llanelli, "bleeding profusely " from his neck.
Dr Jones told the Llanelli on Thursday investigates that for a Taser to cause heart problems, the probes had to pass through the chest.
In Mr. Beynon's case, the Taser hit his right arm and right wrist, he said. he said.
"I rule out the possibility that the Taser caused a significant contribution [to death] in this case.
" It doesn 't have contributed only minimally, "he said.
Image caption, Spencer Beynon died near his home in Llanelli
Dr Jones said that the wound on the front and right side of Mr. Beynon's neck was "gaping open and about three centimeters deep ".
"The most significant finding is the neck injury and the opening of the right jugular vein and loss of blood. "
He said the cut was allegedly caused by something like broken glass, adding that he found injuries to the Mayn right of Mr. Beynon, typical of broken glass.
Dr Ami Jones, the emergency consultant called to the scene the night Mr Beynon died, told the jury that she found the veteran with a gash on his throat.
She described it as a large, gaping wound and said he had lost a lot of blood, adding that the emergency services had electrocuted him twice but did not had failed to get him to start his heart again.
The inquest also heard written testimony from Mr Beynon's GP, Dr Devichand, who described injuries causing severe back pain and requiring strong pain relievers.
"As a result of this mental trauma, he continued to suffer from severe post-traumatic stress disorder.
L The investigation is continuing.