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Chapter 4 Surveillance Equipment

Below are the questions and indicative answers to Covert Surveillance Theory by each chapter.


If you are taking the assessments for the Level 4 NQF qualifications in surveillance, you are advised not to copy and paste these answers into your workbook. It will be easily noticed if you do, and you will be struck off for plagiarism.


Only the indicative content is included, not the complete answers, therefore you will have to answer your questions in full to level 4 standard.

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Chapter 4 Questions - Equipment Technical


1. Explain the basic equipment required to carry out a surveillance operation.


  • Do not just list the items, explain their use.


2. Identify what the terms ‘7 x 50’ means on a pair of binoculars


  • Lens diameter

  • Magnification

  • Angle of view


3. Identify why you should carry some form of identification whilst on surveillance and suggest what type of identification would be suitable.


  • Business card

  • Driving licence

  • SIA licence

  • Association membership card


4. Explain the various methods of taking covert video or images


  • Purpose built cameras (Coffee cup, water bottle, key fob)

  • Bag fits

  • Sweeping

  • Shooting all

  • Positioning

  • Through cover


5. Explain the importance of cameras timer being synchronised to other cameras.

  • Audit trail

  • Continuity

  • Surveillance Log

  • Editing

6. Identify the ideal frame rate and compression for covert portable video footage.


  • Frames per second

  • Compression rate

7. Explain two settings that must be restricted or disabled prior to the commencement of covert video footage.

  • Auto focus

  • Audio

  • Digital zoom

  • Recording light


8. Identify what can lead to poor video recordings.


  • Camera shake

  • Zoom

  • Audio & conversation

  • Settings

  • Focus

  • Unfamiliarity


9. Explain the difference between a thermal imager and an image intensifier.


  • Heat

  • Available light

  • Fog & mist

  • Signatures


Tracking Devices


10. Explain where you would obtain a current policy that covers the deployment of tracking devices to support investigations.


  • Association of British Investigators website

  • Information Commissioners Office website (DPA)


11. Identify the reasons why tracking devices can be used to support investigations or surveillance.

  • Routines

  • Cost

  • Aware targets

  • Anti Surveillance

  • Drilling

  • Trigger

  • Losses

  • Safety

12. Explain how GPS/GSM tracking equipment operates. State where it would normally be placed on a vehicle, and what factors need to be considered in order for it to work properly.


  • GPS co-ordinates

  • Sim card

  • GPRS, 3G, 4G

  • Server

  • Computer, tablet, mobile phone

  • App

  • Power

  • Signal

  • Battery

  • Magnets

  • Zip ties

  • GPS co-ordinates

13. Identify what information is required prior to deploying a tracking device.


  • Vehicles details

  • DVLA or Vehicle Smart check

  • MOT Inspection

  • Location

  • Parking

  • Road worthiness

  • Target under control


14. Identify where a tracking device should not be placed and why.


  • Exhaust pipe or box

  • Metal

  • Wheel arches

  • In view


15. Specify what precautions you should take before deploying a tracker.


  • Target under control

  • Delete history data

  • Remove serial number

  • Security

  • Test


End of Chapter Four Questions

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