A very minor official, who follows rules and regulation to the letter, however nonsensical this approach may be. Characteristic of the current Labour government in the UK. Also colloquially known as "Dickheads PLC", they follow in the same vein as health and safety nazis.
"A motorist in Waltham Forest, East London, was fined for parking on double yellow lines that were not even there when he parked his car. The lorry painting the lines had drawn around the stationary vehicle." - Jobsworth #1
"A council spent £5,000 planting yew trees to screen a new children's play area. It then dug them up again after health and safety experts advised children could fall ill if they gobbled 'several handfuls' of leaves." - Jobsworth #2