“With government unable to pay police as much as they need or would like, police are confiscating their revenue directly from the populace. The threat to individual liberty from stop-and-seize is painfully clear. Without requirements for an arrest or for a warrant, the power to confiscate cash is a clear diminution of property rights. Effectively, the police have been given official sanction to commit literal highway robbery without the threat of punishment. People whose property was seized must pay a lot of money and spend a long time in court for even the chance of getting it back, and police who seize money with no good reason don’t, apparently, suffer any threat of discipline.”
http://www.bloombergview.com/articles/2015-11-12/stop-and-seize-turns-police-into-self-funding-gangs