A boozy American woman has been charged with third-degree assault after she squirted breast milk in the face of a female police officer.

Toni Tramel, from Kentucky, had been arrested for public intoxication and was changing into her prison uniform when the incident allegedly occurred, reports the Sun.

She reportedly squirted milk straight from her breast into the face of the officer supervising her.

The female deputy had to be decontaminated due to the potential risk from what police called a "bio-hazard". (ANI)