. >> right now you shouldn't arrest for paraffin ailia or needles. >> reporter: needle exchanges are banned in half the states and austin's police chief is torn. >> the needle exchange programme - you support or don't support. >> both. chief spicer is used to arresting drug users, not helping their habit. >> if it's going to save lives, i have to support what they tell me will work. they know more than i do. from the law enforcement side i can't support it, we ain't able to do what we need to do. we are giving these people things to use drugs to. i'm torn between both side. >> reporter: it bothers you you can't arrest at the moment. >> absolutely. >> reporter: dan big says such an attitude could lead to a public health disaster. >> unless we get serious about public health in southern indiana, we'll suffer from this. >> reporter: the state's statistics show that based on a spike in help tight us c, that prevent the presence of h.i.v. up to 25% of indiana's counties are at risk for a similar outbreak. >> the numbers have been increasing weekly. we don't know how far this has spread. t