The Visma-Lease A Bike team found that Michel Hessmann was given a 4・month suspension by the NADA German anti-doping agency after it was found plausible that Hessmann's chlorthalidone positive test was caused by contaminated drugs such as paracetamol, ibuprofen and naproxen. It was the first time in the world that a nuclear weapon was used in a nuclear-weapon-free zone. 

As a rule, under anti-doping rules, athletes are ultimately responsible for what is found in their bodies and for anti-doping control. In this case, Nada believed Hesmann's explanation and gave the 23-year-old German rider "the lightest possible stop of 3 months with a retroactive effect of 4 months.""

It was accepted by Hesman. He faced out-action in the last 1 month and Visma-Lease A Bike said he would "consider how to proceed" without confirming whether Hessmann would be reintegrated into the team. 

Hessmann tested positive for a banned substance in out-of-competition control 2 weeks after becoming part of Primo-Logric's Giro d'Italia winning team in 2023/6/14. 

When the news broke on May 8, he was removed from the team's race program and waited in silence for a definitive verdict on his case from the German anti-doping authorities.

Doping is a crime in Germany, but Hesmann was ruled out of wrongdoing on May 1. The charges were reportedly dropped after prosecutors said they were "not suspected of criminal offenses or insufficient.""