Yellow box junctions: what are the rules and how can I avoid a fine?

M.2 NVMe & SATA SSD/HDD Hard Drive Docking Station, ICY BOX USB-C 10Gbps NVMe Cloner&Reader, TripleBay Hard Drive cloner for 2.5"/3.5" SSD&HDD Hard Drives, Offline Cloning, Tool-Free (3 Bay)

Can You Put A Junction Box In The Ceiling? (Know It Now!)

Do You Need A Junction Box For Ceiling Light

How to Mount and Wire a Junction Box

Council rakes in £500k from motorists stopping on 'illegal box junction' outside HQ

Box junction rules: What They Are and How To Use Them