{"id":29317,"date":"2011-02-14T10:54:00","date_gmt":"2011-02-14T10:54:00","guid":{"rendered":""},"modified":"2020-09-25T09:54:45","modified_gmt":"2020-09-25T09:54:45","slug":"urmele-formate-prin-folosirea-armelor","status":"publish","type":"post","link":"https:\/\/rubyskynews.com\/index.php\/2011\/02\/14\/urmele-formate-prin-folosirea-armelor\/","title":{"rendered":"Urmele formate prin folosirea armelor dc foc ."},"content":{"rendered":"
<\/div>

Urmele formate prin folosirea armelor dc foc<\/span><\/span> <\/span>In acceptiunea balisticii judiciare, prin urme formate in cazul folosirii armelor de foe intelegem, pe de o parte, urmele create de arma pe cartwjul tras. <\/i>iar, pe de alta parte, urmele impuscaturii <\/i>formate pe corpul victimei <\/i>sau pe obiectele asupra <\/span>carora si-aii exercitat actiunea proiectilul, ceilalti factori suplimentari ai tragerii. <\/span>Urmele formate de arma pe cartus. <\/span>La tragerile executate cu o arma de foe, indiferent de tipul acesteia, se formeaza invariabil urme pe tubul cartusului, iar in cazul armelor cu teava ghintuita se formeaza pe glonf urme caracteristice relie-fului |evii. <\/span>Amintim ca, in literatura de specialitate, se atribuie caracterul de urma insusi proiectilului sau tubului ca atare. Desigur ca ne aflam in fata unei interpretari <\/span>largi a notiunii de urma, intrucat atat proiectilul, cat si tubul sunt ele Tnsele purtatoare de <\/span>urme valoroase pentru identificarea armei, deci probe materiale.<\/span><\/p>\n

\n Urmele de pe tub <\/span>se formeaza in trei etape succesive: incarcarea, tragerea si <\/i><\/span>extragerea <\/span><\/i>tubului tras. Printre piesele principale sau mecanismele armei care concura la formarea urmelor se afla percutorul, peretele frontal al inchizatorului, glieara extractoare, <\/span>pragul aruncator (ejectorul) si perefii camerei de detonare .<\/span><\/div>\n
\na.<\/span> In momentul incdrcdrii <\/span><\/i><\/span>se formeaza urme dinamice longitudinale pe peretii laterali ai tubului, prin impingerea cartusului in camera de detonare. Astfel, raman <\/span>urme ale marginilor incarcatorului, ale marginilor sau eventualelor neregularitati ale reliefului camerei de detonare.<\/span><\/div>\n
\nb.<\/span> In momentul tragerii <\/i>sau al declansarii focului apar, in primul rand, urmele percutorului <\/i>si ale peretelui frontal al inchizatorului, <\/i>ce se formeaza pe fundul cartusului. <\/span><\/span><\/div>\n
\nc.<\/span> In momentul extragerii tubului, <\/i>se imprima pe rigola sau marginea ante-
\nrioara a rozetei urmele ghearei extractoare, <\/i>iar pe fundul tubului urmele pragului aruncator (ejectorului).<\/span><\/span><\/div>\n
\nUrmele de pe glont <\/span>au prin excelenta un caracter dinamic si reflecta <\/span>caraclcristicile constructiei interioare a tevii ghintuite1<\/sup>. Astfel, la armele cu teava ghintuita raman, sub forma de striatii, urme ale plinurilor, ale flancurilor ghintuite, precum si ale spatiilor dintre ghinturi. In cazul acestor tevi, urmele de pe proiectil reflecta caracteristicile generate ale tevii, determinate de numarul si latimea ghintu-<\/span>rilor, microrelieful tevii, pe baza carora se realizeaza identificarea armei.<\/a><\/span><\/span><\/div>\n

<\/p>\n

\nUrmele de impuscare. <\/span>Prin urme de impuscare se intelege, in primul rand, urmele specifice formate de proiectil, urme denumite si factori primari sau urme <\/span>principale ale tragerii. In al doilea rand, exista urme secundare (factori suplimentari), <\/span>formate mai ales in tragerile de la o anumita distanta.<\/span><\/div>\n
\nUrmele principale <\/span>sunt rezultatul actiunii directe exercitate. Ele se intal-nesc sub trei forme:<\/span><\/div>\n
\na    urme de perforare<\/i><\/span><\/div>\n
\nb<\/span>   urme de patrundere<\/i>, <\/i>sau canale oarbe, cand glontul patrunde in corp fara a<\/span><\/div>\n
\nmai iesi; c  urme <\/i>de ricosare, <\/i>cand glontul este deviat de obiect, in functie de energia cinetica a proiectilului, de densitatea obiectului si de unghiul de lovire.<\/span><\/div>\n
\nUrmelor <\/span>de perforare <\/i><\/span>a obiectelor cu o anumita grosime le sunt speci\u00adfice trei elemente: orifichd de intrare, canalul <\/i>si orificiul de ie$ire. <\/i>In ipoteza perforarii unui obiect foarte subtire, nu se mai poate vorbi insa de existenta cana-lului, uneori insusi orificiul de intrare confundandu-se cu eel de iesire (de exemplu, <\/span>in cazul unei table subtiri de metal).<\/span><\/div>\n
\na.Pe corpul uman <\/i>orificiul de intrare se caracterizcaza prin lipsa de {esut,
\ndiametrul sau fiind apropiat de eel al proiectilului. <\/span><\/div>\n
\nb.<\/span> Pe imbracaminte <\/i>sau pe alte obiecte confectionate din material textil, orifi\u00adciul de intrare este mai mic decat cel de iesire, de regula constatandu-se si un
\ntransport de fibre spre interior. <\/span><\/div>\n
\nc.<\/span> In cazul urmelor formate in obiectele lipsite de elasticitate, <\/i>fragile
\n(caramida, piatra, beton) orificiul de intrare este mai mare decat diametrul
\nproiectilului.<\/span><\/div>\n
<\/div>","protected":false},"excerpt":{"rendered":"

Urmele formate prin folosirea armelor dc foc In acceptiunea balisticii judiciare, prin urme formate in cazul folosirii armelor de foe intelegem, pe de o parte, urmele create de arma pe cartwjul tras. iar, pe de alta parte, urmele impuscaturii formate pe corpul victimei sau pe obiectele asupra carora si-aii exercitat actiunea proiectilul, ceilalti factori suplimentari […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"aioseo_notices":[],"yoast_head":"\nUrmele formate prin folosirea armelor dc foc . - Jobs\/ Internships\/ Scholarships\/<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rubyskynews.com\/index.php\/2011\/02\/14\/urmele-formate-prin-folosirea-armelor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Urmele formate prin folosirea armelor dc foc . - 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