Tejraj Sharma, the man who stabbed Karnataka Lokayukta Justice P Vishwanath Shetty on Wednesday was sent to five days in police custody, ANI reported on Thursday.

State Home Minister Ramalinga Reddy said a joint commission has been set up to investigate if any security lapses led to the attack. The panel’s report is expected by Thursday evening.

Sharma stabbed Shetty at least three times inside his office in Bengaluru on Wednesday. He reportedly claimed to be an advocate while filling is his details in the entry register at the Lokayukta’s office. However, Home Minister Ramalinga Reddy said he was a contractor from Tumakuru, who had complained to the Lokayukta about “some tenders”.

Shetty, a former judge of the Karnataka High Court, was appointed the anti-corruption ombudsman of the state in January 2017. He is 74. His appointment came a year after the previous Lokayukta, Y Bhaskar Rao, stepped down after allegations of an extortion racket, involving his son, being run from his office.