Own-it is a UK based site that has a large knowledge bank of FAQs and factsheets for commonly asked questions, podcasts and videos about intellectual property and the creative industries. If your question is not answered on any of these you can register with them for free and ask an expert. You submit your query along with photos (if appropriate). This is what I am going to recommend my client does.
It's a straightforward useful resource for those difficult questions. Take a look