さあ！諸君！捕鯨問題だ！

The prosecution went so far as to try and obtain DNA evidence to prove Erwin touched the man.
Police collected "foreign matters" from around the trainer’s chest, but the DNA test was negative.
This test was presented in court and proved, even scientifically, that there was no contact between the two men.
http://www.seashepherd.org/news-and-media/2012/01/27/trial-begins-for-dutch-cove-guardian-erw in-vermeulen-in-taiji-japan-1324

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つまり双方が接触したとする直接的な証拠はないってこと。

あとは「胸を押した」その場面を見た者がいない限りこの件は無罪ってことになると思う。