If the prisoner does not violate the law, the contract is valid. The law does not restrict the civil rights capacity of prisoners, and those sentenced to deprivation of political rights are deprived of the right to vote and stand for election; Freedom of speech, publication, assembly, association, procession and demonstration.

What are the precautions when signing a contract?

1. Verify the other party's qualification.

(1) The other party to the contract is a natural person: verify, copy and save his/her identity document (don't replace it with a business card), and confirm his/her true identity and capacity.

(2) The other party to the contract is a legal person:

Go to the local industrial and commercial department to inquire about its industrial and commercial registration information, and make a field trip to its company to determine its authenticity;

Verify whether the contractor is authorized by his company, and check his power of attorney, letter of introduction and contract;

When signing a contract, the other party's official seal and special seal for the contract must be affixed.

(3) The other party to the contract is "other organization":

If the other party is an individual partnership or a sole proprietorship enterprise, check whether the business license registration items are consistent with the introduction; Signature and seal of the partner and the manager of the sole proprietorship enterprise.

Legal person preparation office: confirm the identity of the manager and shareholders, and affix the official seals of the legal person preparation office and shareholders.

(4) In addition to the official seal and private seal, the other party to the contract shall be signed by himself.

2. Form of contract:

(1) The contract must be signed in writing;

(2) If a contract is concluded by oral, letter or data message, a confirmation letter must be signed and sealed;

(3) The backdated contract shall explain the contract background.

3, the necessary contract terms should be specific:

(1) The names of the parties shall be true and consistent;

(2) The subject matter, quantity, quality, price and packing method of the contract shall be specific and clear;

(3) Pay attention to the acceptance methods, procedures and time;

(4) The mode of performance should be clear: delivery mode and settlement mode;

(5) The time point or time period of the performance period shall be determined;

(6) Make it clear as far as possible that the location of our company is the place where the contract is performed;

(7) The liability for breach of contract should be quantified as liquidated damages or the calculation method for determining liquidated damages;

(8) Disputes shall be settled through negotiation and litigation, and it is agreed that the jurisdiction of the court where our company is located or the Guangzhou Arbitration Commission shall arbitrate.

4. Contractual obligations before signing the contract:

(1) Do your best to assist and inform;

(2) Do not disclose and use the trade secrets of the other party obtained when signing the contract.

5. Track and manage the authorization documents issued by the company, such as power of attorney, letter of introduction and sealed contract. When issuing, it shall indicate the name, authorization scope and validity period of the other party to the contract, and take back the business in time.

6. In case of major misunderstanding, obviously unfair, fraud, coercion or taking advantage of others' danger, collect and preserve evidence in time, and exercise the right of cancellation within the prescribed time limit (i.e. one year).

7. After the contract is signed, the original contract shall be kept by the company.

8. The contents of the contract shall not harm the interests of the public, the state, the collective or the third party, and shall not contain exemption clauses that cause personal injury or property loss to the other party due to intentional and gross negligence.

Legal basis: Article 153 of the Civil Code is invalid if it violates the mandatory provisions of laws and administrative regulations. However, unless mandatory provisions do not invalidate civil legal acts.