Police departments around Michigan will generally not release someone who is still drunk, even if a sober friend or family member is willing to take them. This is where the term "drunk tank" comes from. Drunk people will sit in that tank until they sober up enough to be released.
In Royal Oak, by Michigan law the police are under a duty not to release a suspected drunk driver “until he or she is in a proper condition to be released.” They do not wish to run any risk of liability incurred by granting an early release to a drunk driver. Presumably, the driver is in a proper condition to be released on bond when the individual has eliminated most if not all of the alcohol from his or her system. To avoid the guesswork involved in determining the breath alcohol level, many police departments administer a PBT to a subject before his or her release.
In Royal Oak, by Michigan law the police are under a duty not to release a suspected drunk driver “until he or she is in a proper condition to be released.” They do not wish to run any risk of liability incurred by granting an early release to a drunk driver. Presumably, the driver is in a proper condition to be released on bond when the individual has eliminated most if not all of the alcohol from his or her system. To avoid the guesswork involved in determining the breath alcohol level, many police departments administer a PBT to a subject before his or her release.