Pakistani intelligence behind bombings?

I'm not exactly sure what's going on here, but it caught my eye. If you like a mystery....

A Pakistani civilian intelligence agent accused of planting a bomb at the house of North West Frontier Province's chief minister has been handed to police....

According to the arresting policemen, the metal object recovered from the rubbish bin outside Frontier House was seven inches long, one inch thick and labelled "high explosive."

The detainee, later identified as agent Tufail, was taken to a nearby police station and charged under the explosives act.

But within an hour of being taken into custody, agent Tufail was released when Intelligence Bureau (IB) joint director Zafarullah Khan came and took him away, provincial police officials on duty said.

Mr Khan also removed the alleged explosive device and later tried to play down events in an interview with a local paper.