であればif it is the case that ...

君(きみ)が医者(いしゃ)であれば、彼(かれ)は看護(かんご)師(し)だね？

If you are a doctor, then he is a nurse, right?

刑事(けいじ)：「これが凶器(きょうき)であれば、犯人(はんにん)は男性(だんせい)だ。」

Detective: 'If it is the case that this is the murder weapon, then the culprit is a man.'

警察(けいさつ)：「君(きみ)の供述(きょうじゅつ)内容(ないよう)が嘘(うそ)であれば刑罰(けいばつ)が重(おも)くなるぞ。」

Police: 'If it is the case that your testimony is a lie, your punishment will become more severe.'

医師(いし)：「健康(けんこう)診断(しんだん)の結果(けっか)、再(さい)検査(けんさ)が必要(ひつよう)であればまた予約(よやく)が必要(ひつよう)です。」

Doctor: 'If it is the case that a re-examination is necessary based on the results of the health checkup, another appointment will be needed.'

会(あ)うのが卒業(そつぎょう)式(しき)ぶりであれば、彼(かれ)と私(わたし)が会(あ)うのは十(じゅう)年(ねん)以上(いじょう)ぶりということだ。

If it is the case that we meet for the first time since graduation, then it means that he and I are meeting for the first time in over 10 years.