I know that is embarrassing and subject to abuse, but making all arrests public is an important human right. The British used secret arrests against the 1770s rebellion in north america (and not to mention long before then and pretty continually since) which is why it's important in American law, though the British are hardly the only ones to use this tactic. Even the USA has done so too, most notably in the early 2000s, though not within US territory as far as I know.