(S (S (PP-SBJ (BASENP (NN 警察)) (IN は)) (VP (VP (PP (NP (S-REL-NSBJ (VP (PP-OBJ (BASENP (NN 被害) (NN 者)) (IN を)) (VB 名乗る))) (NN 人物)) (IN に)) (VP (NN 接触) (VBV し))) (COMMA 、) (VP (PP-OBJ (SBAR (SBAR (S (PP-SBJ (BASENP (NN 彼)) (IN が)) (VP (VP (NN 告訴) (VBV し)) (VP (MD たい)))) (INFKB か)) (ADVP (RB どう) (INFKB か))) (IN を)) (VP (VBV 尋ね) (VP (MD た)))))) (PERIOD 。))
警察 は 被害 者 を 名乗る 人物 に 接触 し 、 彼 が 告訴 し たい か どう か を 尋ね た 。
Police contacted the alleged victim and asked him if he would like to make a complaint .