As co-founder of the Environmental Investigation Agency (EIA) in 1984, Dave has developed, led and won campaigns with his focused strategies, persuasive documentation, team work and sheer hard work. His undercover exploits, illustrated with his strong photographic images, have closely allied him with the media, his photo-spreads appearing in magazines such as LIFE, The Sunday Times, BBC Wildlife and The Telegraph Magazine. His writing has appeared all over the world and he co-authored "To Save An Elephant" with colleague Allan Thornton, describing their work to secure the ivory ban in 1989. He has worked on documentaries for the BBC, National Geographic and fronted and co-produced a multi-award winning TV series "Animal Detectives". Dave was awarded the Albert Schweitzer Medal for his "work in protecting elephants and dolphins" and EIA was awarded the Global 500 Roll of Honor by UNEP for "outstanding contributions to the protection of the environment".