An investigation should start with hard evidence of doping, testing
positive is an example, and not with hearsay from a bunch of
disgruntled former team-mates, employees or whatever. That just opens
up the floodgates for the spin doctors and lawyers who are more
interested in winning than the truth. With the certainty of not
catching all the dopers, it makes more sense to follow a rules based
system. Not perfect but probably the best possible system.
I hate to say it but, if you want to watch a drug free bicycle race,
go watch something like the kids races at
http://evanstongrandprix.com/evanston-kids-bike-race.html.
I'm not sure but there may be a possibility of a 100% clean field.
Phil H