David ##son was sacked from his chief adviser almost five years ago . Professor claims psychedelic drugs can lead to long - term benefits . He is also trying to reveal what the human brain looks like on LSD . raised money from official sources but raised awareness on crowd - sourced site .
David Nutt was sacked from his chief adviser post five years ago . Professor claims psychedelic trips might lead to long-term benefits . He is also trying to reveal what the human brain looks like on LSD . Refused money from official sources but raised cash on crowd-funding site .