Dear developers,
in the recent Cell paper by Hodis et al (Broad Institute) using GATK for somatic mutation calling, authors report filtering indels that were "supported by reads with a high average number of additional mismatches and calls made in genomic loci covered by reads with a high average mismatch rate and low base quality". It is pointed out in the paper that this is a part of GATK. I haven't been able to locate the corresponding algorithm. Could you please point me to the walker/function?