MANILA — The entry of contraband items inside the Bureau of Corrections' flagship prison cannot be stopped because some BuCor men tolerate it, BuCor chief Gregorio Catapang said Monday.

Speaking to ANC's Headstart, Catapang said that aside from structural problems like the lack of facilities, the state penitentiary also faces a cultural or "behavioral problem" not only among the prisoners but also among its officers,

• 3 Bilibid gang leaders plead guilty to helping Lapid's murder; sentenced up to 8 yrs

"‘Yung may culture of negligence, the culture of walang pakialamanan, the culture of delihensiya, the culture of we can get away with it, 'yun ang gusto kong baguhin. And I want to do it in the right manner, in the right attitude," Catapang said.

"Change of behavior and change of values which can take time kasi 15 years kaming napabayaan," he added.

• Two-thirds of Philippine jails congested, says COA

Catapang lamented that some Bilibid personnel were allowing the entry of contraband inside the prisons.

"Medyo nabawasan na namin 'yan but really ang problema ko ngayon 'yung mga tao ko. They are the ones tolerating it," he said about the entry of the illegal items.

He raised the "deep" problems in the penitentiary after a fight inside the maximum security compound left one inmate dead and 9 more injured.

Authorities are also looking into more possible mass graves at the Bilibid following the discovery of "human bones" there, Justice Secretary Jesus Crispin Remula said Friday.

• BuCor probes 'tunnel' found in Bilibid
• Bilibid under red alert after prison fight leaves 1 dead
• More mass graves may be inside Bilibid, says Remulla