South Australian Police have confirmed that a man and woman were arrested following a dangerous incident in Sandy Creek on Thursday.
It is believed Police attended a house on Mugge Road at around 7.30 am to carry out a routine firearms security audit.
Officers retreated soon after attending the address due to alleged threats from occupants of the home.
Police determined the resistance warranted STAR Group officers and police negotiators be called to the scene.
Once the occupants were removed, police were able to conduct a search of the property and seized a total of 13 firearms which included rifles and shotguns.
A 41-year old man and a 42-year old woman from Concordia have both been charged with a string of offences.
The Concordia man has been bailed to appear in the Elizabeth Magistrates Court on the 3rd of November while his female accomplice did not apply for bail.
A 33-year old woman from Brooklyn Park also found at the address is assisting police with enquiries.
Police temporarily blocked the Barossa Valley Way between Kalperri Road and Williamstown Road due to the incident, with traffic allowed to return later that day.