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An Oklahoma City attorney is disappointed investigators chose to use a search warrant to get documents from his office in an ongoing bribery probe involving an Edmond police officer.

Attorney Josh Welch today said he and law partner David Ogle have promised to cooperate with the Oklahoma State Bureau of Investigation probe since it began about five months ago.

They hadn't had any contact with the agent investigating the bribery scheme, which has resulted in criminal charges against an Edmond police officer and a retired officer, until the agent came to their office Tuesday seeking information from one file, Welch said.

Authorities confirmed the investigation into the bribery scheme is ongoing, but refused to comment on it.

Welch declined to offer any specifics of the search, but he confirmed his firm had represented Jeremy Robert Stapley, the man who appears to be at the center of the bribery scheme.

Stapley was trying to keep his driver's license last year after a drunken driving arrest, according to court papers. An Edmond police officer, Danny Austill, administered his breath test and was approached with a bribe offer and asked not to appear at a hearing on the matter.

Austill reported the bribe attempt, sparking an internal investigation that led to felony charges against Officer Andrew Andrade and retired officer Chris Caplinger.

Welch said he and Ogle had nothing to do with the bribery scheme, but he acknowledges associate Sam Kerr, who appeared in court with Stapley last April when he pleaded guilty to driving under the influence of alcohol, remains suspended from the firm.