Later Todd enrolled Leaf Fielding as a tabletter, responsible for turning the raw material into accurately measured doses.
Kemp and Solomon set about organising another distribution network and recommenced LSD production in west Wales.
Todd recruited a chemist, Andy Munro, to synthesise LSD for his distribution network at a laboratory they set up in Hampton Wick, Greater London.
Kemp was known to Detective Inspector Dick Lee of the Thames Valley Drug Squad as a possible suspect in the drugs trade and when police searched his car they found six pieces of paper which, after being reconstructed, spelt hydrazine hydrate - a key ingredient in the manufacture of LSD.
On 17 February 1976, a meeting in Brecon involving a number of chief constables and senior drug squad officers led to formation of a multi-force operation.
In April 1976, 28 drug squad officers from 10 police forces were chosen and sent to Devizes in Wiltshire where they were trained in surveillance techniques.
Surveillance of Kemp observed his regular 50-mile commutes between his home in Tregaron and Plas Llysyn, an old mansion owned by an American friend Paul Joseph Arnaboldi, in Carno near Llanidloes, mid-Wales.
Lee also instructed two undercover officers to infiltrate the small community of Llanddewi Brefi to target Alston Hughes.
[4] In October 1976, a police team based at RAF Hendon monitored a house in Seymour Road, Hampton Wick.
A further raid in the Dordogne region in France located documents that detailed and proved the LSD business had been immense.
On 1 December 1977, officers searched Kemp's cottage for a second time and dug up a large plastic box that contained 1.3 kg of LSD crystal - enough to create 6.5 million doses.
[7][8] In December 2010, Welsh actor Matthew Rhys bought the film rights to the book Operation Julie: The World's Greatest LSD Bust by Lyn Ebenezer.
[10] Comedian Paul Merton recalled Operation Julie as the inspiration behind his "Policeman on Acid" sketch in his autobiography Only When I Laugh.