Amy Evans, 37, who was a personal assistant to Police and Crime Commissioner Paddy Tipping, and was previously a member of police staff, appeared at Nottingham Magistrates Court on Tuesday 5th May 2015.
She admitted using force computer systems to access information for personal use between 22nd January 2010 and 8th March 2014, which is a breach of the data protection act.
She was ordered to pay £2800 in fines and £105 in costs.
She has been suspended from her post since June 2014.
A police spokesperson said: “The use of force systems and the information they contain is a privilege and one that Amy Evans abused. She has been put before the courts, admitted her guilt and will now have to pay compensation for her actions.”
“All officers and staff receive clear training and guidance to ensure that any information on systems can only be accessed for a specific policing purpose, and this case should reassure the public of our commitment to take appropriate action where it is found that systems are not used in accordance with the law.”