In short:

A woman who intentionally caused harm to a police officer while "significantly intoxicated" has been placed on a three-year good behaviour bond.

Raina Cruise assaulted the officer, who was pregnant, and two security guards in Adelaide's CBD in October 2021.

What's next?

Cruise has been placed on a three-year good-behaviour bond which includes 100 hours of community service and an alcohol ban.

An anti-vaccine protester and failed senate candidate who struck a pregnant police officer and two security guards while intoxicated in an apparent "fit of rage" has been given a good-behaviour bond.

In sentencing on Wednesday, District Court Judge Joanne Deuter said Raina Cruise was "significantly intoxicated" at the time of the incident in October 2021, but that was no excuse for her "violent" offending.

"I accept that you have a problem with your behaviour after drinking alcohol and that you were particularly fired-up after attending an anti-vaccination rally," Judge Deuter said.

"However, that's not an excuse and never should be for striking out at a person who is simply doing their job."

Cruise, 41, previously pleaded guilty to two counts of aggravated assault and was found guilty after trial by judge alone of a charge of intentionally causing harm to Constable Anthea Beck.

Earlier on the same night, Cruise assaulted two security guards at a Rundle Street hotel as the two men she was with at the time were ejected from the venue.

Judge Deuter said the mother-of-four had jumped on one of the security guards and "began punching him and yelling".

"You grabbed his windpipe with both hands several times and punched him in the throat with a closed fist," she said.

Judge Deuter said Cruise punched the other security guard to the left side of his forehead, and below his left ear.

Cruise and the two men then left the venue and were stopped by Constable Beck and another officer who were investigating the security guard assaults.

"During this conversation, a sudden violent altercation ensued between you and Constable Beck, which ultimately led to you grabbing her and dragging her to the ground," Judge Deuter said.

Constable Beck suffered multiple injuries during the altercation, including two patches of her hair torn from her scalp.

At a previous hearing, Constable Beck read aloud a victim impact statement which detailed her suffering and said she was unaware she had been pregnant at the time of the assault.

"When you kicked me, you kicked my baby," she said.

The offending breached a two-year good-behaviour bond for previous charges of disorderly behaviour and resisting arrest after she had refused to leave a hotel when intoxicated.

Judge Deuter said Cruise had endured numerous personal tragedies including the loss of a friend, her brother and husband in separate fatal car crashes, and another friend who was murdered.

Judge Deuter said Cruise, a recently qualified naturopath, also lost her two-month-old son to SIDS, which had an impact on her view of vaccinations. 

"You now have a distrust of vaccinations, believing they were the cause of your son's death," she said.

She said Cruise had been diagnosed with a persistent complex bereavement disorder, and when the COVID-19 pandemic arose, she "became a crusader against what you believed to be government oppression".

"Your resentment against the government's vaccine policy came to the forefront when police questioned you," Judge Deuter said.

"You vented your anger inappropriately upon police."

Judge Deuter said Cruise had demonstrated "some remorse" since the assaults, but it had come late in the proceedings.

"This offending was violent and an attempt by you to escape arrest," she said.

"The video footage of the incident displays your actions as you hit Constable Beck to the face and grabbed her hair in what appeared to be a fit of rage."

Cruise ran in the 2022 federal election for the Informed Medical Options Party, campaigning for bodily autonomy.

Judge Deuter jailed Cruise for three years and eight months with a non-parole period of two years, but suspended that term in favour of a three-year good-behaviour bond.

The bond includes 100 hours of community service and a ban on alcohol consumption.

Outside court, Cruise said she appreciated Judge Deuter's clemency in sentencing "although I don't necessarily agree with her verdict".

"We are certainly considering an appeal," she said.