tax_query - markhowellsmead/helpers GitHub Wiki
See also meta query.
Make sure that the array is two levels deep.
Get posts by custom taxonomy term
$sht_teammemberstory_tax = 6; // Term ID
…
'tax_query' => [
[
'taxonomy' => 'sht_story_type',
'field' => 'term_id',
'terms' => $sht_teammemberstory_tax,
'operator' => '=', // optional if 'equals'
]
],