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La polizia cantonale di Zurigo e quella comunale di Winterthur hanno sperimentato un test rapido che distingue la canapa light da quella illegale, stilandone un bilancio positivo.
Questa veloce verifica, hanno comunicato lunedì gli agenti cantonali, si è rivelata "pratica, sicura e affidabile". In totale sono state effettuate diverse centinaia di prove, con hashish, marijuana, ma anche fiori e foglie di canapa.
Il test è stato sviluppato dall’Istituto di scienze forensi di Zurigo ed è in grado di mettere in evidenza le due sostanze cambiando colore. Grazie a un procedimento chimico, infatti, si tinge di rosso se la sostanza ha una concentrazione di THC inferiore all’1% e di blu se è superiore e quindi illegale. Nel caso in cui l’esito venisse contestato, si procede ad un’analisi in laboratorio.
ATS/sulma
La Polizia testa la canapa
Il Quotidiano 20.12.2017, 20:00
RG 07.00 del 19.12.2017 Il servizio di Annamaria Nunzi
RSI Info 19.12.2017, 08:25
Contenuto audio
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