Design a Logo

I am a Private Investigator in the process of setting up my own company/website. As a part of my overall branding, I would like to have a personalised logo that is not the standard eye in the magnifying glass type image you see on a lot of PI's sites. Ideally I am looking for something slick and corporate. If I am honest, like something you would see in a Jason Bourne or James Bond film. This could be a unique font design for the company name "The Blackgate Group" an interesting design based on the initials of the name or simply an icon logo. I have attached some examples of designs I like from net searches. I would like the design to be black and white. If you feel colour is needed I would be happy with a black, white and red design. I would also like the design to have a corporate feel over something clearly suggesting a private investigator. I want to stand out from my competitors as more serious and professional. The design will be used on my website, business cards and also on correspondence. Should you need any further information, please do not hesitate to ask.