The charge stems from an incident on 24 April 2022, where he tasered suspected burglar Leonard Sandiford during a chase in Woodford Green.
Body camera footage shows Mr Sandiford falling from a wall after being tasered, sustaining a spinal cord injury that now requires him to use a wheelchair.
Mr Sandiford fell from a height of five to six feet following the taser deployment.
PC Newman denies the charge, with the prosecution arguing his use of force was unreasonable and unlawful.