TWO police officers have been stood down after one was investigated by the Crime and Misconduct Commission and the other was accused of attempting to "influence a domestic violence court matter in another state".

A 56-year-old plain clothes Senior Constable from the South Eastern Region has been suspended from duty following a joint investigation by the Crime and Misconduct Commission and Queensland Police Service.

The suspension comes after allegations the man "misappropriated property that came into his possession in connection with his duties".

The investigation is continuing.

In an unrelated matter, a first-year Constable from Metropolitan South Region has been stood down from duty following a New South Wales Police Service investigation.

The standing down of the 32-year-old man relates to alleged attempts to influence a domestic violence court matter in another state.

A police spokesman said it was not connected to his official duties.

The officer will work in a non-operational role while the investigation is ongoing.