John Taleo's suspension was for an indefinite period to allow the Police Service Commission to conduct an investigation into the accident.
Taleo was convicted in December on two counts of dangerous driving after he was involved in two serious accidents with police trucks while driving official vehicles.
He was sentenced last month to pay the equivalent of $300 US dollars, or face eight months' imprisonment.
Taleo has since been reinstated as the Police Commissioner, and his constitutional challenge is at the early conference stage.