If you explain to the hearing what you have just printed on here I would tend to think that they would agree with you.
But obviously someone made the checks so not sure if they can be traced back to you or to someone else in your department.
You would need someone to defend you not sure if that would be a lawyer or someone from your union.
You hire a lawyer and they will think that you have something to hide but as your job is at risk you need a good defence.
You are not getting to the age where you would be retiring in the next ten or so years.
I have read in the news where police forces may have to make long time workers in the police force redundant because of cut backs and it is cheaper to use new recruits who get less wages.
Lets hope that is not your problem.
Whatever happens I hope things go well for you and you remain working with the Police Force.
There is at least one Ex Policeman that uses this forum and there may be others that may be able to give you some good information.