Evening Star Newspaper, June 18, 1931, Page 40

BALLISTIGS GANS INWAR ON CRIVE Expert Describes Progress in . Schooling Police How to DOZEN COMPANIES BID ON AIR STATION PROJECT EKnoxville Firm Offers to Build Two Structures at Anacostia for $246,666. A dogen firms are seeking the con- tract for constructing the two new buildings at the Na Alr Station, it was shown today when bids were opened in the Bureeu of Yards and Docks, Navy Department. While offi- cials still are studying the detailed pro- local firms were amon| sought to construct chief of the Bureau of Yards and Docks, and Secr tary Adams are expected to make an official award within a couple of days. Jewelry which a New Yorker had left in London was taken by an amphibian plane to a German liner at Gherbourg, Frense, and delivered to the owner OHIO UNIVERSITY CONTROVERSY PROBED Professions’ Committee to Publish Findings on Dismissal of Prof. Miller. By the Associatéd Press. J COLUMBUS, Ohio, June 18.—A com- opéned an investigation here mfivvm;';;hlu from the recent dis- missal of . Herbert A. Miller of the department at Ohio State University. Dr. A..B. Coble of the University of hairm: id the inquiry W report of the committee’s findin, be published. The committee was named after Miller's removal by the board of trustees brought protests from the faculty at Ohio State and educators in_other rts of the country. Dr, Coble sald the committee would confer with Prof. Miller, the trustees, members of the faculty and George W. Ohio State, The at the hands of the Sons of, Freedoth sect of” Doukobors. % The them' many ‘women, drove th 'ul;l:‘lul:' hrea , drove the als away, t| = in|ened vengeance fo any others s en ice othe: might come, and tore clothing frrg scme their own number who had given the census takers a list ‘| of_30 names. DOUKOBORS THREATEN TO DISROBE OFFICIALS By the Associated Press. GRAND FORKES, British Columbia, June 18.—Two census takers had a nar- Yesterday's demonstration followed a nude parade several days when a local enumerator it two with the colonists in a e attempt to take ® census. P Sorority Dance Tonight. The Delta Thefa Sigma Sorority and tart immedi- Agent will eol- mittee representing the American Asso-| Rightmire, president visions of bids, it is indicated the low | bound for home. ciation of University Professors have | board announced the dismissal of Mil- end of each month, Identify Bullets. TOW escape from being distobed Tuesdar ' the Circle-T Club will sponsor a dance . ’ lice officers have been going to .!"l’?gol ent Northwestern University I to learn, mong other things, about forensic ballistics—the science, or art, of bullet and firearm identifica- tion. Lieut. Col. Calvin Goddard, the ballistigs expert, who was called to Chicago to help in the solution of the St. Valentine’s day massacre, tells of developments in his fleld in the following article. / BY CALVIN GODDARD, . Northwestern P ersitS Sohoel of Law and Director of, the &clentific Crime Detection Labora- ory. (Copyright, 1931, by the Associated Press.) CHICAGO, June 18.—During the last few vears much attention has been at- trasted to developments in the fleld of firearm identification, or, to use a more comorehensive definition, the identifi- cation of the particular weapon which has fired a given bullet, shell, wad or cherge of buckshot. The proer te~inical term to be ap- plied to investigations of this type is “Iorencic bellist! or “legal ba'listics.” Forensir ballistics, or the epp'ication of ballistic knowledge to questions in disput at law, is. in its most important applications, much more of an art than a sclence. Iis value rests upon the readily established fact that no two similar things, whether large or small, man-made or naturally created, are identical down to their last microscopic details. If this holds for firearms, as it does, and provided every weapon transmits certain markings to bullets or shells which it fires, which it does, these markings ' should be character- istic of that particular arm, and differ slightly, or materially, from those im- by any other arm, whether of the same or different makes. That this is true thousands of experiments have proven. Knowledge Still Lacking. But knowledge that-this fact exists is far from being sufficient to make us experts in the fleld. We must know what markings are left on bullets as they pass through a-barrel, and why; how and why these differ from mark- ings left by other barrels of the same and unlike makes, and how and why even two bullets fired in succession through the same barrel will manifest certain variations one from the other, ordinarily slight, but sometimes quite marked. To acquire this knowledge we must be familiar with the technique of fire- arm and cartridge manufacture as employed in the diff>rent factories throughout the United States and abroad. We must have at hand thou- sands of unfired bullets, loaded cart- ridges, empty shells, in every current caliber, make and subclassification, as well as in any cbsolete type that may be available, not to speak of samples of every kind of modern and obsolete powder cbtainable. Added to these we need specimen bullets of every caliber and type fired through known makes of arms and filed for comparison purposes, and as com- presensive as possible a collection of the different makes and models of arms themselves, quite apart from the fac- tory specifications governing the manu- facture of all weapons now in use. With this reference library as a fcundation, we must nexi acquire the necessary instruments of _precision, mi~rosccpes, micrameters, s-ales, photo- grachic apparatus,’ etc., before we are reedy to start our: work of firearm identificetion. ik Ability Put to Test. When I say that this work is more of an ert taan a science I mean that in the last analysis we reach our con- clusions not so much through the ap- plication of some of the basic sciences as through the comparison beneath a microscope especially designed for the purpose of two objects for the sim- {larities or dissimilarities which they may exhibit. Ability to recognize fundamental similarities in-two bullets or shells, one known to be connected with a murder and the other fired for ccmparison purposes in the weapon suspected, may be acquired only after long apprenticeship and familiarity with the causes which produced the effects studied. Two bullets from the same weapon recegnized as such by one trained in the art may, to the casual obseryer, appear extremely dissimilar, while ‘the converse holds equally true. Hence the proficient student of forensic ballisties must have learned to differentiate be- tween markings casually present op bul- let or shell, which through the opera- tion of transient causes may vary from time to time for the same weapon, and those permanent ones which are sub- Ject to but little modification and which, when present on two exhibits under ob- servation, indicate identity of origin (1. e, that these came from the same arm). Attemrts on the part of inade- quately trained persons to make such differentiations are extremely danger- ous and likely to result in errors which N tend to cast disrepute upon the work ; s T " You have always got dollar-for-dollar value in THAT 6OOD GULF GASOLINE... made g(fm'd (_leliberately to win and held your Je——— patronage ...it made good with you! Now it’s ACACIA® e Bt by Delter...better than ever before. At no extra cost. firearm identification, and several have road news of new construction, de- \ tours, and closed roads. On file in : GULF ; REFINING ; C‘)MPANY FESSIENBASAD: SEEBR GBI WRE] crime dstection laboratory in affillation with Nortbwestern University, Chicago, has just concluded a course of instruc- tion for a student body composed of po- lice officers from all over the country, in which the subject of forensic ballistics was heavily stressed. This, the first course of its kind in America, was so well received that the plans are now under way to reeat it twice. 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