Four people were arrested Thursday after deputies with the Colorado River Station/Needles Police Department served a search warrant in the 100 block of North K Street. Sheriff spokeswoman Jodi Miller said deputies served a search warrant at the home of Henry Estrada, 45, and allegedly found evidence of sales of methamphetamine. Miller said Estrada was arrested on suspicion of possession of a controlled substance for sale. Deputies reportedly found a locked safe in Estrada’s bedroom which reportedly contained a digital scale, Estrada’s wallet, Estrada’s ID card, and about four grams of a white crystalline substance which field tested positive for amphetamines. Miller said deputies also found Anna Reyez, 29, and Aaron Valadez, 28, in a bedroom of the residence. They were found reportedly to be in possession of a glass pipe commonly used to smoke methamphetamine, said Miller. Valadez was arrested on suspicion of possession of drug paraphernalia and outstanding drug related warrants. Reyez was arrested for being under the influence of a controlled substance. A fourth person identified as Tina Madison, 53, was found in an RV on the property. She was reportedly found to be in possession of controlled substance and paraphernalia. All four subjects were taken to the Needles Jail.Anyone with information regarding criminal activity is encouraged to call the Colorado River Station at 760-326-9200, or those who wish to remain anonymous can call WETIP hotline at 1-800-782-7463.