A former Sutton Coldfield former policeman is seeking compensation for disability discrimination against the West Midland Police Force after alleging they failed to make adjustments for his diabetes and depression.
Mr Stephen Butlin made his claim at Birmingham Employment Tribunal after leaving the force.
The hearing had been listed for a day but was adjourned after several hours to enable medical reports to be prepared.
Tribunal chairman Mr James McMillan said Mr Butlin's claim form to the tribunal had given no cause for his depression.
The question is whether the depression was a symptom of the diabetes" said Mr McMillan.
"A tribunal hearing will first have to be held to decide if Mr Butlin is disabled."
Mr David Maxwell, representing the police, said a joint medical report could be prepared on Mr Butlin's condition.
But Mr McMillan described the case as complicated and said he did not favour joint medical reports.
The police are opposing Mr Butlin's disability discrimination claim. Accept he suffers from diabetes but questions whether depression is a disability.
Mr Jim Tindall, representing Mr Butlin, alleged that the West Midlands Police failed to deal with his grievance letter outlining his medical problems and failed to make adjustments - prompting his claim for disability discrimination.
Mr Butlin is at present having medical treatment.
Details about his length of service were not disclosed. A number of police witnesses are to attend the main hearing later this year.