What is the effect of having two lawyers after criminal detention?

It didn't work. Criminal suspects and defendants have the right to hire two defense lawyers to safeguard their legitimate rights and interests.

Legal basis:

Article 33 of the Criminal Procedure Law of People's Republic of China (PRC) * * * A criminal suspect or defendant may entrust one or two persons as defenders in addition to exercising the right of defense by himself. The following persons may be entrusted as defenders:

(1) lawyers;

(2) A person recommended by a people's organization or the unit to which the criminal suspect or defendant belongs;

(3) Guardians, relatives and friends of criminal suspects and defendants.

A person who has been sentenced to punishment according to law or deprived of or restricted personal freedom shall not act as a defender.

A person who has been dismissed from public office or has his lawyer's or notary's practice certificate revoked may not act as a defender, except the guardian or near relative of the criminal suspect or defendant.