Le I-THC ou tetrahydrocannabinol ingenye yama-molecule asebenzayo e- insangu. Lokhu yi i-cannabinoid. Kulinganiselwa ukuthi “ijoyini” liqukethe u-2 kuya ku-20 mg we-THC futhi uma uhogelwa u-15-20% we-THC entuthuni udlulela egazini.

Ingaphinde ibonakale ematheni, emchameni, ezinweleni, ezinweleni zomzimba, njll.

Imiphumela ye-psychotropic ye-cannabis iphikelela kuze kufike emahoreni ayi-12, kuya ngokusetshenziswa kanye nokuzwela kwesihloko.

Ngakho-ke iwindi lokubonakala kweTHC lincike eminyakeni yobudala, ukubaluleka kanye nokujwayelekile kokusetshenziswa.

Qaphela ukuthi uma isemzimbeni, i-THC ihlukaniswe yaba izingxenye ezimbili, i-11OH-THC ne-THC-COOH. I-THC ibonakala egazini imizuzwana embalwa ngemva kokuhogela kokuqala, ukugxila okuphezulu kwe-11OH-THC kufinyelelwa cishe emizuzwini engama-30 kanye nokugxila kwe-THC-COOH ngaphansi kwamahora ama-2.

Ngemuva kokusetshenziswa kwe-cannabis, ikakhulukazi ngokuhogela, iTHC ibonakala ngokushesha egazini. Ubukhona bayo buyabonakala nasemchamweni nasematheni. Ngakho-ke i-THC isetshenziswa njengomaka ukuze kutholwe ukusetshenziswa kwensangu, ngokuvamile esimweni sezokwelapha nezomthetho (ingozi yomgwaqo, izinsolo zokusebenzisa izidakamizwa, njll.) noma uchwepheshe (umuthi womsebenzi).

Kusetshenziswa izivivinyo eziningi, kuye komongo:

• ukuhlolwa kwegazi : kwenza kube nokwenzeka ukuthola ukusetshenziswa kwensangu kungakapheli amahora ama-2 kuye kwayi-10 ngemuva kokuyithatha (kufunwa i-THC, 11OH-THC kanye ne-THC-COOH). Lokhu kuhlolwa kukhethwa uma kwenzeka ingozi yomgwaqo, isibonelo. Isetshenziselwa ukulinganisa isikhathi esidlulile phakathi kokusetshenziswa kokugcina nokuhlolwa kwegazi. Uma ukugxila kwe-THC kungaphezulu kwalokho kwe-11OH-THC, kubonisa ukusetshenziswa ngokuhogela. Okuhlehlayo kuwubufakazi bokusetshenziswa ngokudla. Ngemuva kwezinsuku ezi-3 kuye kwezi-4, ama-cannabinoids akhishwa ngokuphelele egazini.
• ukuhlolwa komchamo (THC-COOH): kwenza kube nokwenzeka ukuhlonza ukusetshenziswa ngezikhathi ezithile kuze kufike ezinsukwini ezi-2 kuye kweziyi-7 kamuva, futhi ngisho nangaphezulu uma kwenzeka ukusetshenziswa okungapheli (izinsuku ezingu-7 kuya kwezingu-21, noma ngisho nangaphezulu).
• ukuhlolwa kwamathe (THC): kwesinye isikhathi isetshenziswa yizikhungo zomthetho ukuhlola abashayeli. Ingabona ukusetshenziswa okusukela emahoreni ama-2 kuye kwayi-10. Nokho, akukho ukuvumelana ekuthembekeni kwayo ngokwesayensi (ukuba khona kwezinto ezingamanga).

Ezinweleni (ngokuvamile uma kwenzeka i-autopsy), ukusetshenziswa kungabonakala ezinyangeni ezimbalwa noma ngisho neminyaka kamuva (izinwele zikhula ngokwesilinganiso se-cm / ngenyanga futhi iminonjana ye-THC ayipheli).

Noma ngabe yikuphi ukuhlolwa okwenziwayo (igazi, umchamo noma amathe), kuhlanganisa ukuthola, ngenxa yokusetshenziswa kwamasosha omzimba alwa ne-THC, ukuba khona kwe-cannabinoid oketshezini oluhloliwe.

Kuye ngohlobo lokuhlola olwenziwe, kuzothathwa igazi, umchamo (ukuqoqwa komchamo) noma amathe (okulingana nokuhlikihla i-swab kakotini).

Ukuhlaziya kwenziwa ngochwepheshe be-forensic.

Njengomhlahlandlela, ukuhlolwa kubhekwa njengenegethivu uma:

• ukuhlushwa komchamo <25 kuya ku-50 ng / mL
• izinga legazi <0,5 kuya ku-5 ng/mL (ukuhlolwa kwegazi futhi kulinganisa i-11OH-THC ne-THC-COOH).
• ukugcwala kwamathe <15 ng/mL (ubunzima bokuhumusha phakathi kuka-0,5 no-14,99 ng/mL)