With stand-in right-back Wayne Graves injured Laws could give Butler or on-loan Phil Gulliver a recall to the back line.
Elsewhere in the side Laws will not make any changes, with Paul Hayes expected to partner Steve Torpey despite the strong form of reserve striker Andy Parton in recent substitute appearances.
The Gulls currently lie eighth in the table, having won three of their last five home games.
They are likely to welcome back striker Martin Gritton after injury.