I have 20+ years of experience developing and designing security systems for clients of various verticals and market sectors. I have both developed RFP (requests for proposal) for clients who are looking to obtain the services of a consultant and RFP for clients who are looking to obtain services of a security vendor/integrator. As the leader of my business for the Americas, I develop responses to proposal requests for professional services. As a consultant, I review submitted proposal from contractors for bid compliance, technical and cost response, etc. This is a subjective question. I always recommend an on-site investigation prior to any contractor developing a bid response. It is the contractor’s responsibility to become aware of any site conditions which may or may not affect their response and proposed fee. On-site investigations can identify a project challenge, ie. 30′ high ceilings vs standard 10′ high ceilings require different ladders and different OSHA certified team members, etc. The RFP may not specifically call this out, but the on-site investigation would make this a known condition. If confidential information is required in order to develop the bid response, this information should be provided to all parties after they have completed an NDA. I would not say trade secrets are directly applicable to this case, except that the plaintiff may have had prior knowledge of the building from prior work they may have completed. I would not call this a “trade secret,” but I would call it intuitional knowledge from prior working experience and not something that they would need to share with the other bidders.