There was a time where the UK Government leaned on a “maximum charge of £29 per commodity” as the charge for importing goods that require an inspection however, this is not completely true.
DEFRA will charge £29 for each medium risk commodity. And then port health will charge £200-£300 for a document check which occurs on every medium risk import. And then upto £500 for a physical check which occurs on 30% of shipments.