Confidential discussion
Only enough information is needed initially to understand the requirement and determine an appropriate inspection scope.
People often delay contacting a TSCM company because they are unsure what they will be asked, who will know about the enquiry or what happens during an inspection. A professional service should make the process clear and discreet from the first contact.

The purpose of an initial conversation is to understand the concern, the location, the information or conversations at risk, relevant access and the outcome you need. A responsible provider should not reinforce an assumption that surveillance is present before evidence has been established.
Only enough information is needed initially to understand the requirement and determine an appropriate inspection scope.
The rooms, property or vehicle to be inspected, access requirements, likely duration and any limitations should be agreed before attendance.
Corporate and private clients may require low-profile arrangements. Practical access can often be planned without broadcasting the reason for the visit.
The exact method depends on the agreed scope and environment. Professional TSCM may combine RF spectrum analysis, physical and electronic inspection, examination of relevant cabling or infrastructure, hidden-camera checks and investigation of unexplained devices or signals.
You should understand what was inspected, significant observations, anomalies investigated, any limitations and what follow-up is recommended. Where a suspicious item is found, the next step depends on the circumstances and may include preservation of evidence or referral to an appropriate specialist or authority.
The enquiry itself may be sensitive. Ask how your information is handled, who will attend and how findings will be communicated before instructing a provider.