There was one point in this week's show where we viewed the fugitive's transfer car from behind, as though filmed by a following car. That made me realise that not only do they have a camera-person with them at all times (some of the footage is from the passenger seat of a transfer car) but there is also a following car or van with all the rest of the equipment and presumably a relief camera-person for alternate shifts. So as others have said, these fugitives aren't exactly hiding successfully because they are never on their own.
Our theory (or I might have read it elsewhere, apologies if stolen) is that the camera-crew tell the hunters key pieces of information, such as if the fugitive is in an area with good CCTV or is buying a travel ticket in a public place. The hunters 'fake' seeing the fugitive on CCTV and send in a capture team; then they obtain the CCTV footage later on to splice into the show.