A detective who allegedly placed a toy monkey on a black colleague's desk has been accused of gross misconduct.
Det Sgt Andrew Mottau is alleged to have told the woman to make him cups of tea "when the black monkey starts to sing", Thames Valley Police said.
He is also accused of making racist remarks and asking her to "embrace" the monkey in the period between 15 August and 15 September 2016.
A four-day misconduct hearing will start in Oxford on 24 April.
The force, which covers Oxfordshire, Berkshire and Buckinghamshire, said it could not say where Det Sgt Mottau is based.