Hamann famously got arrested in Japan during his Liverpool days following a night of heavy drinking but not much has been revealed regarding why the German was put behind bars.
Now Carragher has gone on to speak regarding the interesting incident and has stated that Hamann was arrested for jumping on the bonnet and roof of a taxi while under the influence of alcohol.
In a special Q&A for the Daily Mail, Carragher recalled: "We played at the World Club Championship in Japan and we were beaten in the final.
"We needed a drink and nobody could sleep so we went out for a drink and met up with a few of the supporters.
"We were trying to get a taxi back and a few of the Spanish lads, who hadn't had as much to drink as us, jump in the first taxi as only one shows up. Didi Hamann then jumps on the bonnet and roof.
"Twenty-five Japanese police officers turn up and we then get chased through the streets of Tokyo.
"We are not the quickest footballers you have ever seen but we could just run away because they were so small. Didi was a lot slower than me and was locked up before being released the next day. It was a lucky escape. There was no MailOnline then!"