Four people were arrested on drug charges late Thursday night in Olean.
Investigators had received several complaints of possible drug sales at a Garden Avenue apartment and, when executing a search warrant, found crack cocaine, meth, heroin and paraphernalia.
39-year-old Dwayne Higgs of Buffalo is charged with possession and possession with intent to sell and tampering with physical evidence. He also had warrants out of Erie and Niagara Falls on drug charges.
41-year-old Tunnisha Lissmore of Buffalo is charged with possession of crack cocaine.
19-year-old Kyle Giardini and 34-year-old Jamie See, both of Olean, are charged with possession of meth and of a hypodermic needle.