RCMP in Pilot Butte, Sask., had to switch tactics Thursday after a Taser didn't work, after being used on a man who was apparently holding a blade to his own throat.
Officers had been called to a home early in the morning about a distraught man inside, who allegedly had weapons.
The Mounties cordoned off the area and brought in crisis negotiators, police dogs and a SWAT team.
They tried to negotiate and more than eight hours later, the man emerged from the house holding what appeared to be a blade to his throat.
Police said he was a danger to himself and other people, and on that basis, fired a stun gun, also known as a conducted energy weapon or Taser.
However, the Taser "was ineffective", police said.
They went back to negotiating with the man and at 11:25 a.m. CST, he was taken into custody.
The man was taken to hospital in Regina for a health assessment.
Police didn't say if charges will be laid.
There was no explanation of why the Taser had failed.