1. If you need to supplement the previous confession, you should continue to supplement it and sign it.
2. If there is a lack of signature on the previous confession, it is necessary to make a new confession. However, the previous confession must be kept and filed together with the new confession.
3. Other evidential materials that need to be signed and confirmed.
Generally speaking, if you call to sign, the police station will not detain you, because if there is evidence to detain, you will not call in advance, but apply for a detention permit and arrest you directly at home.
Second, the detention procedure:
(1) When the public security organ carries out detention, it must produce the detention certificate (voucher) issued by the person in charge of the public security organ at or above the county level;
(two) the execution of detention shall not be less than two people;
(3) Immediately after detention, the detained person shall be sent to the detention center for custody, and no later than 24 hours;
(4) Notify the family members of the detained person within 24 hours after detention, except for situations that may hinder the investigation, such as being unable to notify or suspected of endangering national security or terrorist activities, and immediately notify the family members of the detained person after the situation that hinders the investigation disappears;
(5) The public security organ shall interrogate the detained person within 24 hours after detention. If it is found that he should not be detained, he must be released immediately and issue a release certificate;
(6) When a public security organ carries out detention in a different place, it shall notify the public security organ where the detainee is located, and the public security organ where the detainee is located shall cooperate.
The detention of a criminal suspect by a procuratorate must be decided by the procurator-general and served on the public security organ for execution. When necessary, the people's procuratorate may assist the public security organ in execution.
Legal basis:
Procedures for handling administrative cases by public security organs
162nd administrative detention punishment combined execution, the longest no more than 20 days.
Before the execution of administrative detention punishment, if the perpetrator is found to have other illegal acts, and the public security organ makes a decision on administrative detention according to law, it shall be combined with the administrative detention being executed.
Article 163 Where a decision is made to impose administrative detention, the time when compulsory measures to restrict personal freedom were taken for the same act before the punishment shall be counted. One day of restriction of personal freedom is counted as one day of administrative detention. The time for inquiring and verifying, continuing to inquire and taking restraint measures is not deducted.
If compulsory measures are taken to restrict personal freedom beyond the time limit of the administrative detention decision, the administrative detention decision will not be implemented.
Article 164 If a criminal is under any of the following circumstances and should be given administrative detention according to law, he shall make a decision on punishment, but shall not be sent to a detention center for execution:
(a) has reached the age of fourteen but under the age of sixteen;
(2) Having reached the age of 16 but under the age of 18, violating public security administration or other public security administration acts for the first time. However, those who have been taken into custody for reeducation, those who have been administratively detained according to law, or those who have been sentenced by the people's court for disturbing public order, endangering public safety, infringing on personal rights and property rights, and obstructing social management;
(three) more than seventy years of age;
(4) Pregnant women or women who are breastfeeding their babies.