The Labour Court in Johannesburg uplifted the suspension of Crime Intelligence boss Richard Mdluli on Friday, two radio stations reported.
Eyewitness News and SABC radio said Mdluli secured an order in the court for the reversal of his suspension.
The SA Police Service was not in court at the time.
Mdluli was suspended on Sunday by acting national police commissioner Nhlanhla Mkhwanazi.
Earlier on Friday, the SAPS confirmed that it was served with legal papers from Mdluli's lawyers.
Last year, Mdluli faced fraud and corruption charges relating to alleged misuse of a secret crime intelligence fund to buy luxury vehicles, and to hiring family members.
He also faced a murder charge for the death of his former lover's husband, Oupa Ramogibe. The charges led to his initial suspension.
All the charges were withdrawn in March, and Mdluli was reinstated as head of Crime Intelligence.
The move sparked widespread condemnation, and Police Minister Nathi Mthethwa moved Mdluli to a different division last month. On Sunday, Mkhwanazi announced his suspension.