How long can the police's phone records go back?

Legal analysis: Generally speaking, citizens' telephone records can't be inquired casually. With the consent of the person in charge of the case-handling unit, the police can hold certificates and letters of introduction to the telecommunications enterprise to inquire about the communication records within half a year. Article 149 of China's Criminal Procedure Law stipulates that the approval decision (for technical investigation measures) should determine the types and applicable objects of technical investigation measures according to the needs of investigating crimes. The approval decision is valid for three months from the date of issuance.

Legal basis: Article 1033 of the Civil Code of People's Republic of China (PRC). Unless otherwise provided by law or expressly agreed by the obligee, no organization or individual may commit the following acts:

(a) by telephone, SMS, instant messaging tools, e-mail, leaflets, etc. Disturb the private life of others;

(2) Entering, taking photos or peeping into other people's private spaces such as houses and hotel rooms;

(3) Shooting, peeping, eavesdropping or revealing other people's private activities;

(4) Shooting or peeping at the private parts of others' bodies;

(5) handling other people's private information;

(6) Infringe upon the privacy of others in other ways.