The Justice for Julian support group, together with Julian Webster's family, are writing to The Home Secretary Theresa May calling for a Judicial Review.
Mr Webster, 24, from Birmingham, had returned to the pub in question after a night out to retrieve his mobile phone.
The police were called and when they turned up asked the door staff to release him. When they did, he was dead.
The Crown Prosecution Service decided it was not in the public interest to prosecute the door staff.
More top news
A transgender teen from Gloucester has told ITV News how he plans to freeze his eggs before his sex change in order to have children.
Feeling cool with sunshine and showers
A woman given six months to live and told her to plan her funeral says she was called back to hospital and told it was a mistake.