Force Orders 1943

X b� ' No. 15 TO BE CIRCli8TEDTO DIPlSIONAL 22nd. �pr 1, 1943. ARiD STATION OF m CES. . . PHOTOGRAPHYIN POLICETidORg. Tha Chief Constablewishes $uperintendentvat the next pay day to take the opportunityof impressingon a11 ranks the uses to which photography can n u be appliad in police work. Ser6eantsare to make this General O d� a subjeet for a leeture to a11 regular and auxiliary officers in their Seetion. Apart from the routine use of photographyin photographingRoad Aecidents, scen�s of serious cr1me, fingerprints,prisoners,and other 1r.cidants, there are other uses to which photographyhas been applied recentlywhieh are not {enerallyknown throughoutthe County. For instancethe copying and reproductionof Maps for Wardens Seotor Posts etc. h pe or drawings can be copied and be reprodueedto a maximum size o� 15 ins. x 12 ins. It & also now possible to make stencilsby photographic means, and reproduce copies on a GestetnerMachine, of maps and line drawingsin black and white. The size is limitad to foolscap size, 13ins. x 8 ins. 19 Maps o� the YPardensSector Posts in Crewe Divieion have been copied aad reproduced by this method. Photographyhas bean used successfullyi identifyingcars which have . be�n involved in fatal accidents and failed to stop after the accidont. Thera have been two cases recently, one in Broxton Division and the other in Northwich Division in which pieeas of paint from the cars have been four.dat the eeene of the accidents. The pieces of paint Bave �en photbgraphedand the places �rom which paint was missing on the cara have been photographed.Then comparativephotographshave been produced showingthe striationson the paint and on the ear and so have definite'1yidentifiedthe particular car involved. Infra Red Photographyhas been used with suocess in two cases of murder. 1'histype o� photographyhas the power of penetratingb1ood and when it is necessary to show injurlesto a badly bloodstainedpart of the body by using this method the injuries show c1early. 2nfra Red photographywas also used to photograph a bad1y bloodstainedletter found at the scene of a murdar. The letter in its origlnal state was unreadablebut on t he Infra Red Photographthe writing was c1early ehown and the letter proced to be a letter of confessionwritten by the murderer. This type of photographywas used in a case at Stockton Heath where a woman vrasalleged to be slgnallingto a point soue 8 miles away. The ordinary photographicplate would not show this distance but an Infr Red photograph showed the point 8 m11es away quite clearly. i here is now an U1tra vi&let Lamp at Hartford and this is most nsaful for photographing�ingerprintson multi coloured backgroundsand also examination of documentsfor forgeries. Photographshave been takon for Crewe Division in order to show up code numbers on tools wh&ch have been obliterated, and also in a oase for Northwich Divisionin which a number was filed of� a bicycle frame. It is possible as it was in the above cases to sometimes show up obliterated numbers on articles by shiningan oblique ray of light on the article and so it can be photographedand produced in Court. 1 he above are some of the uses to which photographyhas been applied in Police work and which are not generallyknawn. Divisional Photographersnow attend twice yearly at the Photographic Departm nt,P.artford,and are instructedin the recent cases phoj ographedat Aartford, end they are enco a;ed to discuss their pvoblems, and so vrould be ab1e to give advice on any problem i photographywhich may arise in their respectiveDivisions. � / z c/ y Chief Cons6able of Cheshire. 0 ou ty Ohief Oonstai&s Office� CHESTE$. 22nd. Apri1,1943.