A taser stun gun has been used for the second time to help Northamptonshire police subdue a suspect.
The stun gun is used to subdue a suspect with electricity
The controversial gun was used to help arrest a man suspected of stabbing a boy in Corby on Thursday night.
The county force is one of five taking part in a trial of the taser, designed to be a safer alternative to firearms.
Officers first used the device in Thrapston 10 days ago.
Officers were called to Leighton Road just after 1900 BST where they found a 15-year-old boy with stab wounds and a man armed with a knife.
An armed response team was called after the man ignored repeated warnings to drop the knife and an attempt to disarm him using a pepper spray failed.
The high-voltage electric stun gun was used to temporarily incapacitate the man, and allow officers to arrest him.
The man from Corby, who has not been named, was treated in hospital and will be questioned later.
The 15-year-old's stab wounds are said to be not life-threatening.
The Northamptonshire force is one of five trialling the M26 Advanced Taser for 12 months.
The taser, which transmits an electrical impulse into the body, is being trialled as a less lethal option for disabling a suspect than conventional firearms.
This latest incident will now - as routine - be referred to the Police Complaints Authority for investigation.