I presume this is the same Warren Armstrong?
"Fitzgerald virtually hand-picked the members of the new licensing branch, starting with the physically imposing absolutely no nonsense Graham Williams as Inspector. Many of the new breed went on to high office in the new reformed police service, with Williams close to finishing a record run in Parker's old job as Assistant Commissioner Crime.
The new branch set about assiduously enforcing the law, with a particular focus on one Warren Armstrong, failed Jehovah's witness and minor pimp from the pre-Fitzgerald era, who set about assiduously trying to find holes in the law. Armstrong pioneered the very short-lived trade of lingerie hairdressing, before trying a number of variations on a Bangkok girlie bar theme in his Spring Hill establishment, the Players Inn. Armstrong habitually wore enough gold chains, bracelets and rings to fit some pimping stereotypes but, admitted only to running a bar where clients may just meet women who may just be prostitutes who may just invite them outside to discuss a suitable price and locality. Whether this is the extent of his involvement or whether it was even legal was a question always before the courts."