Peter Risdale told BBC Sport after the game "We've got CCTV evidence and therefore we've now identified an individual who threw a coin, we believe it's the individual whose coin hit the referee
"He's now been arrested by the police, we will be talking to the police to make sure they press charges – assuming it is the right individual and from CCTV we've seen it is – and he will be banned for life from all Cardiff City matches.
"It's a disgrace, it's unacceptable, makes you sick because obviously we spend a lot of time at Cardiff City trying to do the right things.
"Today was always going to be a high profile game. You don't expect idiots to do that and people like that have no place in football and certainly no place at Cardiff City football club."
Cardiff manager Dave Jones added "It was an absolutely crazy thing to do… throwing a coin could have easily taken someone's eye out.
"It could have hit one of our players, one of the Swansea players or the referee. Why do it?
"It's the last thing we need down here. We've worked really hard to get away from all that and improve our image – I can't understand the mentality of the person.
"We have all the banter, the shouting and atmosphere but it's just a football match. I thought those days were long gone.
"It's sad because everyone will be talking about the man who threw the coin rather than a game which had everything – excitement, controversy and a last-minute penalty."