Lawyers for Connecticut home-invasion monster Joshua Komisarjevsky unleashed a barrage of blows at surviving victim Dr. William Petit, branding him a grandstanding griper, according to court documents.

The papers slammed “Dr. Petit’s never-ending and purposefully publicized complaints about our system of justice,” a reference to the doctor’s public criticisms of the lengthy trial process.

In the 200 pages of pretrial motions filed yesterday, Komisarjevsky’s team also demanded that Petit and all other witnesses in the case be sequestered, presumably in a hotel, throughout the capital-murder trial that begins next month and is likely to span most of this year.

In a chilling move, Komisarjevsky also demanded that his own seat in the courtroom be moved, to permit “an unimpeded, unobstructed and uncluttered ‘face-to-face’ confrontation with the witnesses against him,” Petit among them.

Komisarjevsky is charged with beating Petit — a prominent Cheshire, Conn., endocrinologist — nearly to death with a baseball bat, then joining with Steven Hayes in a night of rape, torture and arson.

In November, Hayes was convicted and sentenced to death in the July 2007 atrocity, in which Petit’s wife, Jennifer Hawke-Petit, was raped and strangled, and left his daughters, Michaela, 11, and Hayley, 17, dead of smoke inhalation after being tied to their beds, doused with gas and set afire.

Jury selection for Komisarjevsky — described by prosecutors as the mastermind of the murders, and who, like Hayes, was caught fleeing the burning house — begins on March 14.

As if his requests to sequester and then stare down the only survivor was not enough, Komisarjevsky, who is seeking a change of venue and judge for the trial, demanded that Petit’s relatives and friends — at whom he repeatedly sneers in the papers as the “Petit posse” — be barred from wearing memorial pins.

laura.italiano@nypost.com

