One of the other issues that your comment shines a light on is that police often book someone under multiple charges. A safe one that the person is likely to be able to be convicted on, and multiple charges that probably don't apply to the situation.
This is common because it gives prosecutors the power to "offer" to drop the higher charges in exchange for accepting a plea bargain to the lower, and likely more appropriate, charges.
The result of this is that booking information, with the photos, from a drunken bar fight might show the person was charged with assault with a deadly weapon when the final charge will end up being something like disorderly conduct.
This is common because it gives prosecutors the power to "offer" to drop the higher charges in exchange for accepting a plea bargain to the lower, and likely more appropriate, charges.
The result of this is that booking information, with the photos, from a drunken bar fight might show the person was charged with assault with a deadly weapon when the final charge will end up being something like disorderly conduct.