Exchanging your question of “proof of not cheating” with “evidence for nandrolone by burrito”, there are many factors to be considered.
The cascading improbabilities argument from the World Athletics relies on the experts testimony being neutral, complete, accurate, and representative.
Considering testimony from Prof. McClone:
- Prof. McClone gave an order of magnitude that “far less than 1 in 10,000” cryptorchids make it to market. He didn’t say how far, but this figure gives an order of magnitude. Multiply that by 121,000,000 pigs slaughtered per year, and that is as many as 12,100 pigs getting past the USDA inspectors, and to market — according to the AIU-expert.
- The positive test results were not consistent with corn-fed boar, but were consistent with ingestion of soy-fed intact boar.
- Prof. McClone conceded that disruptions during the pandemic increased the quantity of soy in the diets of pigs.
- Prof. McClone said things were back to normal by November, but the CAS panel also said they were convinced that the pork stomach meat came from a frozen batch purchased in September.
- One of the pork stomach burritos for sale that day was a pork-chorizo burrito. The stomach may have been a red-herring, if in fact the chorizo contained small quantities of intact boar organs.
- According to a study by Prof. Ayotte, as little as 14 grams, or half an ounce, of heart, liver, and kidneys, in the burrito would be sufficient.
- Prof. McClone relies on USDA inspectors to filter cryptorchids from getting to market, but:
1) As we have seen, as many as 12,100 pigs get past USDA inspectors each year, during normal times
2) Times were not normal during the pandemic, not only with respect to the pigs’ diets, but delays in processing due to worker shortages (meaning older pigs) and absenteeism and temporary plant closures.
3) USDA regulations permit intact boar carcasses to be eaten based on a sniff test — something USDA inspectors may be less reluctant to perform during a pandemic of an airborne virus — assuming that they were not at home sick
4) Recent changes in federal administration have reduced the number of USDA inspectors, delegating the physical inspection of carcasses to the workers.
5) The CAS report doesn’t address alternatives like chemical castration, allowed by the USDA, and how delays and supply problems during the pandemic may have impacted that.
Consider the testimony from Prof. Ayotte:
- She pointed to two studies, and represents to the CAS Panel that 2.4 ng/ml is indicative of a maximal quantity from intact boar ingestion.
- These studies have small sample sizes, and were not looking for maximums.
- One 2000 study referenced by WADA’s TD2021NA shows 7.5 ng/ml in one subject - again a small sample size of 3, not looking for a maximum.
- A 2008 study conducted by the very same Prof. Ayotte shows 130 ng/ml in one subject — again a small sample size not looking for a maximum. This is 22x the amount found in Houlihan’s urine.
- In light of these studies, it is highly misleading to argue Houlihan’s levels were 2-3x higher than in studies, especially when that very same author conducted a study with a subject 22x higher than Houlihan.
- She has a proven history of misleading anti-doping panels, as the Lawson verdict was overturned by another CAS panel expressly mentioning her testimony as misleading.
- She suggests that the test results are consistent with oral nandrolone known to exist on the market, but the same results, by the same argument and evidence, are also consistent with soy-fed intact boar, known to exist on the market.