Toulouse coach Guy Noves said he was "very upset and angry" after police escorted him off the pitch minutes after his side won the Heineken Cup.
Noves missed seeing the trophy presentation after police grabbed him when he tried to go into the crowd at Murrayfield to greet his family.
There were ugly scenes as he tried to remonstrate before being led off.
"This experience has spoiled what should have been one of the greatest days of my life," said Noves.
Heineken Cup officials said that they would investigate the incident.
"We will have to examine the whole situation in detail," said European Rugby Cup chief executive Derek McGrath.
But he added: "Right now the police and all the key people involved were
comfortable that the level of response was appropriate.
"Things got a little bit out of hand and Guy was taken away to calm the situation down. There was just a big misunderstanding."
Noves explained: "All I was trying to do was reach my son at the front of the audience to take him on to the pitch with me to see my players being presented with the cup.
"The security people and the police did not understand and they were quite rough with me. They took me to a small room and kept me there for more than 15 minutes.
"I calmed down and kept trying to tell them that I was the Toulouse coach and what I had been trying to do. Eventually, they understood.
"I am upset, my family is upset and the Toulouse supporters are upset.
"This kind of thing would not have happened in France - there, we allow everyone to the party. This was not a good thing for Edinburgh."