Bail, Bond, Bribe, these are just words, and they allow for the same result: after being arrested and facing prosecution you may pay the (insert your favorite b-word) and subsequently leave the country. Either there is no legal mechanic (confiscation of passport, Immigration flag, etc.) to ensure a suspect can't leave the country, or there is, and paying that b-word removes that obstacle - the result is the same no matter what you call it.
So, Big Joke (another b-word), fix your system and maybe you won't be so embarrassed by it in the future.