dar es salaam police tanzania arrest woman video clip show kiss embrace another woman party widely share online senior official say homosexuality criminal offense east african nation conviction carnal knowledge person order nature carry life sentence woman police say reside northwestern tanzanian town geita arrest video circulate social media show woman kiss hug another woman present ring confirm tanzanian woman police custody video clip issue detail late conclude investigation geita police chief mponjoli mwabulambo tell reuters telephone saturday tanzanian president john magufuli government step crackdown homosexuality since come power 2015 threaten june arrest expel activists well deregister non-governmental organizations campaign gay right october authorities main city dar es salaam raid meet hotel say gather promote same-sex relationships arrest least 12 men arrest woman geita think first arrest lesbian suspect recent crackdown police source say authorities also search woman give ring video clip reuters could confirm video film clip draw condemnation social media platforms socially conservative nation tanzanians condemn celebration immoral arrest woman accept engagement ring another woman cosmas alele resident northwestern town kagera say twitter write kiswahili since homosexuality criminal offense tanzania right group reluctant speak publicly defense gay right country health ministry ban non governmental organizations last year distribute free lubricants gays part hiv/aids control measure health experts warn shut hiv/aids outreach program target gay people could put wide population high risk infections around 1.4 million tanzanians among population 50 million live hiv virus cause aid accord government estimate police arrest woman tanzania video same-sex kiss