Opinion by
Appellant, whom we have met before, see
Commonwealth ex rel. Linde v. Maroney,
Appellant has had a prior collateral hearing at which he was represented by counsel. Under §4(b) (1) of the Post Conviction Hearing Act, Act of January 25, 1966, P. L. (1965) 1580, 19 P.S. §1180-4(b) (1), a knowing and understanding failure to raise an issue at a prior collateral proceeding acts as a waiver of that issue. Section 4(c) provides that failure to raise an issue is rebuttably presumed to be knowing and understanding, where as here appellant was represented by counsel at his prior collateral proceeding, see
Commonwealth v. Satchell,
The order of the court below is affirmed.
