The fat bloke who sits in a dusty storeroom where all of the kit is held and who shouts "stores are for storing, if they were for issuing kit they'd be called "issues" wouldn't they?".
Often an LE Officer who's about as bent as they come. Often investigated by SIB when a delivery of bergens go missing from stores only to turn up on a market stall or Silverman's some weeks later.
In the Andrew, this is the term for the fat bloke who sits at the big wheel and drives the ship.