Phone tip that children were playing with guns had insufficient indicia of criminality to justify blocking in of vehicle and subsequent searches.
http://media.ca7.uscourts.gov/cgi-bin/rssExec.pl?Submit=Display&Path=Y2018/D08-17/C:17-1651:J:Hamilton:con:T:fnOp:N:2204352:S:0
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.