A fourth man has been found not guilty in connection to the drugging and sexual assault of women at a central Christchurch bar, following a 2018 investigation.

The man was accused of sexually violating a women he met at the bar.

The Herald's Anna Leask says Judge Paul Mabey weighed up everything put before him at the Christchurch District Court today.

"There was too much reasonable doubt for him. An acquittal is not a finding of innocent, it is just a finding that the Crown has not proved its case, so he is not guilty of that crime."

Mabey says the man wasn't an innocent participant to the ongoing drink spiking and assaults at the bar.

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