Detecting minor genetic variants has become essential to cancer and infectious disease management. Many have turned to next generation sequencing to fill this need given the common misperception that the limit of detection (LOD) for Sanger sequencing is somewhere between variant allele frequencies (VAFs) of 15% to 25%1,2,3. Recent developments have generated algorithmic methods to reduce this limit to 5% for single nucleotide polymorphisms (SNPs)4. We have invented algorithms to extend this work to detect and characterize insertions and deletions (indels). It appears we can detect indels down to 2.5% VAF. Standard Sanger sequencing protocols can be used. The method can generate the familiar electropherogram data display with noise substantially reduced.