Comic Title: Marshal Law #4
Publisher: Marvel
Imprint: Epic
Cover Date: August 1988
On Sale Date: May 24, 1988 Shipping Date May 24, 1988
Source: Comics Buyers Guide, #759, Page 3

Shipping Date May 24, 1988
Source: Comics Buyers Guide, #760

Shipping Date May 3, 1988
Source: Marvel Age, #65

Shipping Date May 5, 1988
Source: House Ad, Comics Buyer's Guide #752, Page 21

Newsstand Date May 24, 1988
Source: Marvel Age, #65

Shipping Date April 19, 1988
Source: Amazing Heroes, #138

Copyright Date April 19, 1988
Source: Library of Congress, Copyright Office 1988

Shipping Date April 21, 1988
Source: Comics Buyers Guide, #752, #754, #756, #758

Copyright Date August 15, 1988
Source: Library of Congress, Copyright Office 1988
LoC has duplicate entries with different publication dates

Cover Price: $1.95
Page Count: 32
Editor: Dan G. Chichester

Title: "Conduct Unbecoming"
Pages: 28

Feature(s):
Marshal Law

Writer: Pat Mills
Artist: Kevin O'Neill
Letterer: Philip Hugh Felix

Reprinted In:
Strip #7 (1990)
Strip #8 (1990)
Marshal Law – Fear and Loathing TPB (1990)
Marshal Law:The Deluxe Edition HC (2013)
Marshal Law TPB (2015)