The Fiji information ministry has called on Fiji Trades Union Congress leader Felix Anthony to produce his medical report to the police so investigations can be conducted.
Mr Anthony lodged a complaint last month, reporting the alleged threats by the regime leader, Commodore Frank Bainimarama, and the subsequent beating by military officers.
He says in February last year, he was punched and kicked, suffering a damaged eardrum and bruising that needed medical care.
The ministry's permanent secretary Sharon Smith-Johns says they have to deal with facts not hearsay.
Speaking on behalf of the police, she says their work has been delayed because of the medical report not being submitted
Mr Anthony says he has had difficulty trying to get medical reports from Lautoka Hospital where he was examined after the assault.
Ms Smith-Johns says it is easy for anyone to make these claims without proof and get their 15 minutes of fame.
She also says the complaint is seen by some as trying to derail the constitution consultation process now underway.