{"title":"Everything for Forensics","description":"","products":[{"product_id":"testigo-metrico-criminalistica-escuadra-y-regleta-plastico","title":"Metric Witness Crimexis Criminalistics Square and Ruler Plastic","description":"\u003cp\u003eRuler length: 8x8cm\u003cbr\u003eScale value: 1mm\u003cbr\u003eBrand: Crimexis\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":42722210939017,"sku":"0081","price":150.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPT_Image_3_jun_2026_01_36_25.png?v=1780472206"},{"product_id":"indicadores-amarillos-1-10-criminalistica-forense","title":"Crimexis 1-30 Forensic Criminalistics Indicators Photographic Evidence Numbers Plastic","description":"\u003cp\u003eABS Engineering Plastic: The use of ABS engineering plastic ensures that the cones are durable and impact-resistant, making them suitable for various field conditions.\u003c\/p\u003e\n\u003cp\u003eNestable Design: The nestable design allows multiple cones to be stored compactly, saving space and making transport more efficient.\u003c\/p\u003e\n\u003ch3 class=\"magic-4\"\u003e\n\n\u003cspan data-spm-anchor-id=\"a2700.details-description.0.i1.5466LyK0LyK03w\" class=\"magic-5\"\u003eProduct Description\u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"magic-9\"\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\n\u003c\/h3\u003e\n\u003cdiv class=\"magic-6\"\u003e\n\n\u003cdiv class=\"magic-7\"\u003e\n\n\u003cdiv class=\"magic-8\"\u003e\n\n\u003cb\u003e\u003c\/b\u003e\u003cspan\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cspan id=\"tl_2\"\u003e\u003cb\u003eTechnical Parameters\u003c\/b\u003e Quantity: Number 1-30, 30 pieces in total Material: ABS engineering plastic Base: 113mm x 113mm Height: 110mm Weight: 85 grams \u003cb\u003eProduct Features\u003c\/b\u003e The cone is stable and will not be blown over by the wind. Multiple cones can be nested within each other, saving storage space.\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":43802512195721,"sku":"","price":1800.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_01_47_23.png?v=1780472870"},{"product_id":"polvo-reactivo-crimexis-huellas-dactilares-30ml-cobre-metalico","title":"Crimexis Standard Fingerprint Powder Metallic Copper 30ml","description":"\u003cp class=\"MsoListParagraphCxSpFirst\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eCopper Metallic Powder: Copper metallic powder with a large specific surface area provides greater adherence and better development of latent fingerprints.\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eNon-volatile powder: The magnetic property of the powder reduces the risk of inhalation, making it safer for users during application.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46837368979593,"sku":"2003","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_01_25_55.png?v=1780471564"},{"product_id":"polvo-reactivo-magnetico-crimexis-huellas-dactilares-30ml-cobre-metalico","title":"Crimexis Magnetic Fingerprint Powder Copper 30ml","description":"\u003cp class=\"MsoListParagraphCxSpFirst\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eCopper metallic powder: Copper metallic powder with a large specific surface area provides greater adherence and better development of latent fingerprints.\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eNon-volatile powder: The magnetic property of the powder reduces the risk of inhalation, making it safer for users during application.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46837393588361,"sku":"2005","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_01_21_50.png?v=1780471319"},{"product_id":"polvo-para-huellas-dactilares-estandar-aluminio-metalico-30ml","title":"Crimexis Standard Metallic Aluminum Fingerprint Powder 30ml","description":"\u003cdiv\u003e\u003cspan\u003e\u003cb id=\"tl_2\"\u003ePurpose\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cspan\u003e\u003cspan id=\"tl_3\"\u003e1. Shows fingerprints on smooth, non-porous surfaces. Suitable for dark surfaces. Suitable for horizontal and vertical surfaces.\u003cbr\u003e2. In general, a fingerprint is a mixture of grease and sweat. For greasy prints, powders have better results; for sweat prints, superglue has better results.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003cbr\u003eWhen viewed under a microscope, aluminum metal powder appears as flakes with a large specific surface area, which gives them stronger adhesion and better development effect among all fingerprint powders.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan id=\"tl_4\"\u003e\u003cb\u003eMethod\u003c\/b\u003e \u003cbr\u003e1. Aluminum metal powder flies easily, so it is recommended to wear a mask to avoid excessive inhalation of powder when using it.\u003cbr\u003e2. Dip the aluminum metal powder with the squirrel hairbrush, place the brush hair on the lid of the powder container, rotate the brush so that the powder can be evenly applied to the brush. Place the squirrel hairbrush upside down, gently move the handle to shake off excess powder.\u003cbr\u003e3. Sweep the fingerprint along the ridge line until the silver fingerprint appears.\u003cbr\u003e4. The adhesion of aluminum metal powder is strong, so it can be brushed repeatedly to remove dust in the valley without damaging the ridge line.\u003c\/span\u003e\u003c\/div\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839814553737,"sku":"2007","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_23_18_58.png?v=1780550391"},{"product_id":"polvo-magnetico-para-huellas-dactilares-crimexis-color-aluminio-metalico-30ml","title":"Crimexis Magnetic Fingerprint Powder Metallic Aluminum Color 30ml","description":"\u003cp class=\"MsoListParagraphCxSpFirst\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cb\u003eAluminum Magnetic Powder:\u003c\/b\u003e Aluminum magnetic powder provides strong adhesion and better development of latent fingerprints on non-porous, non-magnetic, and smooth surfaces.\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\" style=\"text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cb\u003e30ml Bottle Size:\u003c\/b\u003e The 30ml bottle size is convenient for handling and storage, making it easy to use in various forensic applications.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839821697161,"sku":"2009","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_23_30_59.png?v=1780551158"},{"product_id":"polvo-para-huellas-dactilares-crimexis-negro-estandar-30ml","title":"Crimexis Standard Black Fingerprint Powder 30ml","description":"\u003cp class=\"MsoListParagraphCxSpFirst\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e30 ml bottle size: The 30 ml bottle size is convenient for handling and storage, making it easy to use in various forensic applications.\u003c\/p\u003e\n\u003cp class=\"MsoListParagraphCxSpLast\" style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003eCompatibility with non-porous surfaces: This powder is effective on non-porous and smooth surfaces, ensuring clear and visible fingerprint development on light-colored backgrounds.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839826022537,"sku":"2011","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPT_Image_3_jun_2026_23_46_48.png?v=1780552017"},{"product_id":"polvo-magnetico-crimexis-para-huellas-dactilares-negro-30ml","title":"Crimexis Magnetic Fingerprint Powder Black 30ml","description":"\u003cp style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\" class=\"MsoListParagraphCxSpFirst\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cb\u003e30 ml bottle size:\u003c\/b\u003e The 30 ml bottle size is convenient for handling and storage, making it easy to use in various forensic applications.\u003c\/p\u003e\n\u003cp style=\"text-align: justify; text-indent: -18.0pt; mso-list: l0 level1 lfo1;\" class=\"MsoListParagraphCxSpLast\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol;\"\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e·\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e     \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cb\u003eCompatibility with non-porous surfaces:\u003c\/b\u003e This powder is effective on non-porous and smooth surfaces, ensuring clear and visible fingerprint development on light-colored backgrounds.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839830872201,"sku":"2013","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage3jun2026_23_51_29.png?v=1780552365"},{"product_id":"polvo-para-huellas-dactilares-crimexis-estandar-blanco-30ml","title":"Crimexis Standard White Fingerprint Powder 30ml","description":"\u003cp\u003e•    30 ml bottle size: The 30 ml bottle size is convenient for precise application and easy storage, making it suitable for both field and laboratory use.\u003cbr\u003e•    White fingerprint powder: The white color of the powder enhances visibility on dark surfaces, allowing for clear and effective fingerprint development.\u003cbr\u003e\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839831462025,"sku":"2015","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_00_00_06.png?v=1780552814"},{"product_id":"polvo-magnetico-crimexis-para-huellas-dactilares-blanco-30ml","title":"Crimexis Magnetic Fingerprint Powder White 30ml","description":"\u003cp\u003eNon-porous surface compatibility: This powder is specially designed to reveal latent fingerprints on non-porous, non-magnetic, and smooth surfaces, making it ideal for dark and horizontal surfaces.\u003c\/p\u003e\n\u003cp\u003eMagnetic powder applicator: The use of a magnetic powder applicator ensures efficient and controlled application, improving the visibility of latent fingerprints during the investigation process.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839880548489,"sku":null,"price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_01_15_41.png?v=1780557355"},{"product_id":"polvo-para-huellas-dactilares-crimexis-estandar-gris-30ml","title":"Crimexis Standard Gray Fingerprint Powder 30ml","description":"\u003cp\u003e\u003cspan\u003e\u003cspan id=\"tl_15\"\u003e\u003cb\u003ePurpose\u003c\/b\u003e\u003cbr\u003e1. Shows fingerprints on smooth, non-porous surfaces. Suitable for multi-colored surfaces. Suitable for horizontal and vertical surfaces.\u003cbr\u003e2. Generally, a fingerprint is a mixture of grease and sweat. For greasy prints, powders have better results; for sweat prints, superglue has better results.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003cbr\u003eWhen developing fingerprints on multi-colored surfaces (such as colorful paint), black powder provides weak contrast against a dark background; white powder provides weak contrast against a light-colored background; gray powder provides appropriate contrast against both dark and light backgrounds, maintaining the integrity of the ridge line.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cspan id=\"tl_16\"\u003e\u003cbr\u003e\u003cb\u003eMethod\u003c\/b\u003e\u003cbr\u003eDip enough powder with the feather brush or squirrel hair brush to sweep the latent fingerprint directly until a gray fingerprint appears.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839918035081,"sku":null,"price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_01_52_33.png?v=1780559578"},{"product_id":"polvo-magnetico-para-huellas-dactilares-gris-30ml","title":"Gray Magnetic Fingerprint Powder 30ml","description":"\u003cp\u003e\u003cspan\u003e\u003cspan id=\"tl_15\"\u003e\u003cb data-spm-anchor-id=\"a2700.details-description.0.i1.4037xE2pxE2pZf\"\u003ePurpose\u003c\/b\u003e\u003cbr\u003e1. Shows fingerprints on smooth and non-porous surfaces. Suitable for multi-colored surfaces. Suitable for horizontal and vertical surfaces.\u003cbr\u003e2. Generally, a fingerprint is a mixture of grease and sweat. For greasy prints, powders have better results; for sweat prints, superglue has better results.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003cbr\u003eWhen revealing fingerprints on multi-colored surfaces (such as colorful paint), black powder provides a weak contrast against a dark background; white powder provides a weak contrast against a light-colored background; gray powder provides appropriate contrast against both dark and light backgrounds, thus maintaining the integrity of the ridge line.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cspan id=\"tl_16\"\u003e\u003cbr\u003e\u003cb\u003eMethod\u003c\/b\u003e\u003cbr\u003eDip enough powder with the feather brush or squirrel hair brush to directly brush the latent fingerprint until a gray fingerprint appears.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839918755977,"sku":null,"price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_01_55_50.png?v=1780559758"},{"product_id":"polvo-para-huellas-dactilares-rojo-fluorescente-30ml","title":"Crimexis Standard Red Fluorescent Fingerprint Powder 30ml","description":"\u003cp\u003eRed Fluorescence: The red fluorescence of the powder under 415nm violet light helps reduce interference from multi-colored backgrounds, facilitating fingerprint photography and identification.\u003c\/p\u003e\n\u003cp\u003eNon-Porous Surface Compatibility: This powder is suitable for developing latent fingerprints on non-porous and smooth surfaces, ensuring clear and visible prints in various environments.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839925080201,"sku":null,"price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_02_02_39.png?v=1780560189"},{"product_id":"polvo-magnetico-para-huellas-dactilares-crimexis-rojo-fluorescente","title":"Crimexis Fluorescent Red Magnetic Fingerprint Powder","description":"\u003cp\u003ePurpose\u003cbr\u003eDevelops latent fingerprints on non-porous, non-magnetic, and smooth surfaces. Suitable for multi-colored and horizontal surfaces.\u003cbr\u003eDescription\u003cbr\u003eWhen developing fingerprints on multi-colored surfaces (such as colorful pictures) with non-fluorescent powders, the multi-colored background causes serious interference when photographing. When developing with the fluorescent red magnetic powder, fingerprints fluoresce red under violet light in a dark environment, so the interference caused by the multi-colored background can be greatly reduced when photographing.\u003cbr\u003e\u003cbr\u003eMethod\u003cbr\u003e1. Use the magnetic powder applicator to pick up as much powder as possible and brush the latent fingerprint with the powder cluster until the fingerprint is developed.\u003cbr\u003e2. A powder blower can be used to remove excess powder.\u003cbr\u003e3. Illuminate the fingerprint with violet or blue light, observe the fingerprint through orange filter glasses, the fingerprint appears red, and the background appears dark.\u003c\/p\u003e","brand":"Crimexis","offers":[{"title":"Default Title","offer_id":46839937630345,"sku":"2025","price":200.0,"currency_code":"MXN","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5100\/8393\/files\/ChatGPTImage4jun2026_02_08_53.png?v=1780560537"},{"product_id":"polvo-para-huellas-dactilares-amarillo-fluorescente-30ml","title":"Crimexis Standard Yellow Fluorescent Fingerprint Powder 30ml","description":"\u003cp\u003ePurpose\u003cbr\u003eA. Develops fingerprints on smooth, non-porous surfaces. Suitable for multi-colored surfaces. Suitable for both horizontal and vertical surfaces.\u003cbr\u003eB. In general, a fingerprint is a mixture of grease and sweat. For greasy prints, powders offer better results; for sweat prints, superglue is more effective.\u003cbr\u003e \u003cbr\u003eDescription\u003cbr\u003eWhen developing fingerprints on multi-colored surfaces (such as colorful pictorial images) with non-fluorescent powders, the multi-colored background causes significant interference when photographing them. When developed with yellow fluorescent powder, the fingerprints emit a yellow fluorescence under violet light in a dark environment, which greatly reduces the interference caused by the multi-colored background when photographing them.\u003cbr\u003eMethod\u003cbr\u003e1. Moisten enough powder with a feather or squirrel-hair brush to directly dust latent fingerprints until the print is developed.\u003cbr\u003e 2. A powder blower ball can be used to remove excess powder.\u003cbr\u003e 3. 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Use the magnetic powder applicator to pick up as much powder as possible and brush the latent fingerprint with the cluster of powder until the fingerprint is developed.\u003cbr\u003e2. A powder blower can be used to remove redundant powder.\u003cbr\u003e3. 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