Contact the police and file an incident report.
This post is provided for general informational purposes only and is not intended to be legal advice specific to you. This general information is not a substitute for the advice of an attorney in your jurisdiction. The attorney client relationship is not established by this post.
You should definitely call the police department and file an incident report. Depending on your age this could result in very serious charges for the photographer / blackmailer. You may also want to have a civil lawyer send a demand letter outlining legal action and demanding the photos be deleted and not published.
The above does nto constitute specific legal advice. It is always advisable to seek the advice of an experienced lawyer who can discuss all of the facts and circumstances of your individual case with you.
When you say "without your permission" do you mean that you were asleep/unconscious or that you were drunk and now regret it? It's possible that both the photography and republishing to Instagram would be actionable, depending on your answer. Either way, though, I think the republishing would be actionable.
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