Former PC Melissa Sanchez Marulanda, 29, was off-duty when she launched an attack on a fellow officer who she repeatedly struck in the face.
She was found to have breached the standards of professional behaviour in respect of ‘discreditable conduct’.
Met Police were called to a property in Croydon, south London, after receiving a silent emergency call last July.
They met the former probationer at the site, along with two other people, and explained that they needed to ensure the welfare of those inside.
However when they tried to enter, they were pushed and Sanchez Marulanda physically attacked one of the officers.
She was arrested and immediately suspended from duty and later charged with assault on an emergency worker, on July 9.
The former PC attended Croydon Crown Court on May 12 and was handed a one-year suspended prison sentence.
“Although PC Melissa Sanchez Marulanda was only weeks into her career as a Metropolitan Police officer, her behaviour displayed none of the qualities we expect in our officers,” said Chief Inspector Matt Cox, from the Met’s Directorate of Professional Standards.
“A lack of self-control, ill-discipline and a disregard for the law. She pleaded guilty to assaulting a colleague, and has now had to face the consequences of her actions; and an end to her policing career.”
Sanchez Marulanda will now be added to the College of Policing barred list.
She was also fined and ordered to wear an electronic tag for three months.
Watch: How to prevent getting into debt