136 Iowa 743 | Iowa | 1908
The offense is alleged to have been committed August 12, 1902, and the prosecutrix attained the age of fifteen years October 12th of the same year. She gave birth to a child June 7, 1903, or two hundred and ninety-nine days after her alleged connection with the defendant. Her testimony was, in substance, that her home
The manifest purpose, however, as plainly appears, was to get the thought before the jury that all medical authorities disagreed with the witness, even though he persistently denied, this, and was compelled to make answers on that assumption. There had been no proof that any or all the authorities, nor had he so stated, were as assumed, and yet this witness was. put in the attitude of arraying himself against the writers on the subject, and this with the approval of the court. He had not alluded to any authorities on his direct examination as the witness had in Cronk v. Wabash R. Co., 123 Iowa, 349 ; nor had he based his opinion on what he had learned from the books, as in State v. Donovan, 128 Iowa, 44, and for this reason asked as in Hutchinson v. State, 19 Neb. 262 (27 N. W. 113), what the several authorities taught. Medical works are not admissible in evidence, and, when not alluded to in direct examination, cannot be gotten before the jury, over objection, on cross-examination, nor can this be done by indirection in assuming their supposed teachings. State v. Thompson, 127 Iowa, 440; Marshall v. Brown, 50 Mich. 148 (15 N. W. 55). In Conn. Life Ins. Co. v. Ellis, 89 Ill. 512, the expert had said
Of course, where a witness bases his opinion on a particular treatise, extracts from it may be introduced for impeachment purposes. City of Ripon v. Bittel, 30 Wis. 614; Pinney v. Cahill, 48 Mich. 584 (12 N. W. 862) ; Hess v. Lowrey, 122 Ind. 225 (23 N. E. 156, 7 L. R. A. 90, 17 Am. St. Rep. 355) ; Byers v. Railway, 94 Tenn. 345 (29 S. W. 128). In Link v. Sheldon, 64 Hun, 632 (18 N. Y. Supp. 817), the expert, after describing the proper treatment of a
In the case at bar the physician had based his opinion solely on his own experience and observation, and therefore it was error to cross-examine him on the state of the medical authorities in order thereby to get their supposed teachings before the jury. The error was prejudicial; for, unless the period of gestation extended longer than the witness deemed possible, the defendant must have been acquitted. Moreover, the inquiry was not one depending so much on skill in the profession as upon observation in its practice. The difficulty in reaching satisfactory concluson in the matter lies in ascertaining accurate data. With animals it is easy to demonstrate the time which ordinarily does and may elapse between conception and birth, blit in the case of human beings statements of the parties to the copulation in relation to this somewhat delicate subject must be relied upon, peculiarly subject to mistake as they are and warped as they often are by the desire to shield the one or the other, by making the time appear longer or shorter, as interest may dictate, than in the usual course of nature; so that, at best, the value of an expert’s opinion whether in a book or from the witness’ stand would depend _on the data upon which based, and the wholesale reference to authorities by the county attorney was especially objectionable. The range of cross-examination in testing the learning and skill of one who is presented as an expert is largely discretionary, hut under that pretext improper evidence or inferences from assumptions not supported by the record ought not to he brought before the jury, especially with the sanction of the court.
Because of the errors pointed out, the judgment is reversed> and the cause, remanded.