Ohio Rev. Code Ann. § 2923.131
(C) Whoever violates this section is guilty of possession of a deadly weapon while under detention.
(2) If the offender, at the time of the commission of the offense, was under detention in any other manner, possession of a deadly weapon while under detention is one of the following:
(b) A felony of the second degree if any of the following applies:
(c) A felony of the third degree if any of the following applies:
(d) A felony of the fourth degree if any of the following applies:
(e) A felony of the fifth degree if any of the following applies: