I believe another underhand method they use is to not publish negative study results.
So if they get results they don't want for say adverse reaction, they just ignore those, don't make them available and try again.
Similarly vaccines are tested on thoroughly screened people with no health problems. So if you take the case of a child like my DD1 (born early, low birth weight, eczema, casein intolerant), it is more than likely that the vaccines she received had never been tested for safety for a child like her.
Then when it turns out that the vaccine wasn't safe for a child just try getting a doctor to admit it and report it. (medical professionals accept that my DD is vaccine damaged only because another doctor, our GP, says so. If I don't show them her notes written by him they think I'm making it up)
Again, the safety info on vaccines is totally inaccurate as the reporting system for adverse events is so inadequate. Currently any safety claims are based on pure guesswork as it is generally accepted, even by the government themselves, that only about 10% of reactions get reported.
If the government was serious about our children's safety they would overhaul the current passive reporting system and make it routine to follow up every vaccine given.
They would also start trying to understand what makes certain children vulnerable to vaccine damage and set up a rigorous screening process just as they have started advising doing in the US.
At the same time they should be contacting and examining every child suspected of MMR damage and try to find out what has happened to these poor souls.
I'm not holding my breath waiting for any of this however. I guess they're too busy persecuting blameless researchers and figuring out how to withdraw legal aid from families whose children have been damaged so that the state doesn't have to pay out compensation (and be faced with their monumental cock up).