The family of a man from Kent who was killed while working in Afghanistan have paid tribute to him.
Mr Chamberlain, who was in his 40s and from Westgate-on-Sea, was working for the Border Management Task Force when he was shot dead.
His family said in a statement:
"Dave died yesterday doing the job he loved. He has always been a loving and good father, husband, son and brother and will be greatly missed by us all.
He enjoyed life to the full, and all will miss his exuberant personality."
A British civilian contractor shot dead by someone wearing an Afghan national security force uniform was a father of two from Kent.
Dave Chamberlain was killed in western Afghanistan alongside two American colleagues by a gunman who turned his weapon against the US-military coalition, sources said today.
Mr Chamberlain, who was in his 40s and from Westgate-on-Sea, was working for the Border Management Task Force, which trains and mentors former Afghan customs officers and border policemen, when he and his colleagues were killed yesterday, a source said.