Alcamo police arrested 21-year-old local Pietro Giacalone in flagrante for unlawful possession of a narcotic substance on a Wednesday evening.[1] The stop came during a specially prepared operation by the Investigative Section.[1] Officers had watched the young man as he suspiciously carried a bulky sack along Via Vincenzo Spica in central Alcamo.[1]

A personal search found him carrying about one kilogram of marijuana.[1] An extended search of his home found small scales and material suitable for packaging drug doses.[1] After validation of the arrest, the investigating judge placed Giacalone under house arrest.[1]

The Alcamo commissariat presented the case as part of its tightened fight against drug trafficking in Alcamo under Operation Pre-Crime guidelines devised by Trapani police chief Carmine Esposito.[1] Giacalone was already known to the commissariat for prior cases of possession for personal use.[1] He was also accused over the 4 March 2011 robbery of the LIDL supermarket on state road SS113.[1]