For all the people here who think that legislators are NOT above the law:
Under the Oklahoma Constitution, members of both houses enjoy the privilege of being free from arrest in all cases, except for treason, felony, and breach of the peace. This immunity applies to members "during their Attendance at the Session of their respective Houses, and in going to and returning from the same." The term "arrest" has been interpreted broadly, and includes any detention or delay in the course of law enforcement, including court summons and subpoenas.
This clause appears in the United States Constitution as well, and it's a very good thing. It doesn't put the members above the law, merely stays action against them until a recess or adjournment, and it's limited to misdemeanors; felonies can still garner an arrest. The idea is to prevent anybody from interfering with a vote by detaining a member; without it, Officer Dirty would be able to arrest the members of the legislature who planned to vote against the police funding bill, swinging the vote.