Earlier quoted context omitted.
Give them a better place to do drugs; a place where they get free needles and can throw away the old ones properly (so they won't leave them lying about).
I can't really understand the attitude such as 'if they want to do drug, let them do it in a safe way at least'. It sounds compassionate and all, but isn't doing drug just, WRONG? I somehow feel this is an encouragement to them.
An adult has the inalienable right to do what they want with their own body.