A man attacked his ex partner and then hurt a policeman who arrived to investigate after slamming a door in his face.
PC Matthew Breathwick put his foot in the door and used an electroshock weapon, a Taser, through a gap to subdue David Nixon (27).
Prosecutor Jim Clare said the incident started as domestic violence on Nixon’s ex partner, Sian May.
They had a son in September 2011, but split up 11 months ago.
Mr Clare said Ms May told police Nixon had been “quite good” recently, but had a tendency to drink quite a lot.
Nixon, of Granville Terrace, Sutton Bridge, visited her home on August 8 and Ms May could tell he had been drinking.
He was argumentative and after about 45 minutes Nixon grabbed her by the throat, forced her to the floor in the kitchen and was screaming at her.
Mr Clare said she was shouting at Nixon to stop because her son was scared.
Ms May was left with a small bruise on her shoulder, but no red marks to her neck.
Nixon was sitting on steps at the side of the house, smoking and smelling of intoxicants, when PC Breathwick arrived.
Mr Clare said Nixon told the officer: “She’s not coming in here and neither are you.”
Nixon began dialling 999, saying he wanted to complain about Ms May assaulting him, but did not complete the call.
He again called 999 – this time alleging that his “girlfriend had come towards him with a knife”.
Inside the house Nixon went towards the officer with fists raised and the officer sprayed him, with no effect.
Nixon pushed PC Breathwick outside, slammed the door in his face, but the officer put his foot in the door to stop it closing.
The officer’s foot was bruised and had red marks.
Nixon admitted both assaults and magistrates on Thursday adjourned sentence to September 12 for a probation report.