Though this guidelines are adopted by an American organisation keeping in mind the American perspective and legal system, but I think that Investigative Reporters of other countries who use hidden cameras-spy cams regularly should follow these guidelines
RTDNA guidelines says Professional electronic journalists should operate as trustees of the public, seek the truth, report it fairly and with integrity and independence, and stand accountable for their actions
If you cannot independently confirm critical information, reveal your sources; tell the public how you know what you know and what you cannot confirm. Don’t stop there. Keep seeking confirmation
Like journalists you should remember the journalism mantra if your mother says she loves you check it out.Check and recheck before consume any information from social media